Temperature is a fundamental physical phenomenon, which is produced in the course of the most common and most important process parameters , whether it is industrial and agricultural production, scientific research and national defense modernization remains , rectangle loudspeaker are inseparable from the temperature measurement and temperature sensors. It is the modern testing and industrial process control applications the highest frequency of one of the sensors . However, the correct temperature measurement is not easy , even with a high accuracy temperature sensor , but if the inappropriate choice of measurement method or measurement environment can not meet the requirements, are difficult to get the desired results .
At present, although the main temperature sensors, such as thermocouples , RTD and radiation thermometer technology has matured, but only in the traditional occasions , can not meet the requirements of many fields , especially in high-tech fields .round loudspeaker Therefore, the national experts in the competitive development of new targeted temperature sensors and special utility measurement techniques .
Optical fiber ( short fiber ) since its inception in the 1970s , followed by the development of laser technology , from theory and practice have proved that it has a series of superiority , optical fiber sensing technology in the field of application is also increasingly widespread face . Fiber optic sensor is a state transition to be measured can be measured as an optical signal. It is composed of car receivers optocouplers , such as optical transmission fiber and the three departments. At present, to measure pressure, displacement , strain, surface , angular , linear velocity , temperature , magnetic field, current, voltage and other physical advent of fiber optic sensors to solve the traditional way of measuring difficult to solve technical problems . According to statistics, there are about hundreds of different forms of fiber optic sensors for different areas of testing. It is expected that the new wave of technological revolution , fiber optic sensors will be widely used, and trying out a greater role .
Thermocouple temperature sensor is a traditional , very versatile . In recent years, has developed a new temperature measurement technology , can fire warning has unique application . The new temperature thermistor temperature sensor called special cables, also known as continuous thermocouple Continuous Thermocouple) or heat-seeking type thermocouple (Heating mini receiver Seeking Thermocouple).
Galvanic thermistor cable using the thermoelectric effect , but measuring the temperature of the head is not even , but the hot electrode length along the highest temperature point temperature. Because of this unique feature , originally developed Micro Microphones as a high- precision technology equipment laying on aircraft carriers, destroyers ship tanks and military aircraft and other military equipment . At present, has been widely applied to various fields to prevent and reduce the “overheating” caused by accidents and losses .
Material constituting the outer protective tube : FTLD -type with double Electronic Microphones PTFE , CTTC type with Inconel . To avoid measurement environment of dust, grease and moisture and other media immersion , and temperature range of false positives caused by different , so the use of different materials . Temperature components : K-type thermocouples.
2013年10月15日星期二
On the new temperature sensor research and development
Temperature is a fundamental physical phenomenon, which is produced in the course of the most common and most important process parameters , whether it is industrial and agricultural production, scientific research and national defense modernization remains , rectangle loudspeaker are inseparable from the temperature measurement and temperature sensors. It is the modern testing and industrial process control applications the highest frequency of one of the sensors . However, the correct temperature measurement is not easy , even with a high accuracy temperature sensor , but if the inappropriate choice of measurement method or measurement environment can not meet the requirements, are difficult to get the desired results .
At present, although the main temperature sensors, such as thermocouples , RTD and radiation thermometer technology has matured, but only in the traditional occasions , can not meet the requirements of many fields , especially in high-tech fields .round loudspeaker Therefore, the national experts in the competitive development of new targeted temperature sensors and special utility measurement techniques .
Optical fiber ( short fiber ) since its inception in the 1970s , followed by the development of laser technology , from theory and practice have proved that it has a series of superiority , optical fiber sensing technology in the field of application is also increasingly widespread face . Fiber optic sensor is a state transition to be measured can be measured as an optical signal. It is composed of car receivers optocouplers , such as optical transmission fiber and the three departments. At present, to measure pressure, displacement , strain, surface , angular , linear velocity , temperature , magnetic field, current, voltage and other physical advent of fiber optic sensors to solve the traditional way of measuring difficult to solve technical problems . According to statistics, there are about hundreds of different forms of fiber optic sensors for different areas of testing. It is expected that the new wave of technological revolution , fiber optic sensors will be widely used, and trying out a greater role .
Thermocouple temperature sensor is a traditional , very versatile . In recent years, has developed a new temperature measurement technology , can fire warning has unique application . The new temperature thermistor temperature sensor called special cables, also known as continuous thermocouple Continuous Thermocouple) or heat-seeking type thermocouple (Heating mini receiver Seeking Thermocouple).
Galvanic thermistor cable using the thermoelectric effect , but measuring the temperature of the head is not even , but the hot electrode length along the highest temperature point temperature. Because of this unique feature , originally developed Micro Microphones as a high- precision technology equipment laying on aircraft carriers, destroyers ship tanks and military aircraft and other military equipment . At present, has been widely applied to various fields to prevent and reduce the “overheating” caused by accidents and losses .
Material constituting the outer protective tube : FTLD -type with double Electronic Microphones PTFE , CTTC type with Inconel . To avoid measurement environment of dust, grease and moisture and other media immersion , and temperature range of false positives caused by different , so the use of different materials . Temperature components : K-type thermocouples.
At present, although the main temperature sensors, such as thermocouples , RTD and radiation thermometer technology has matured, but only in the traditional occasions , can not meet the requirements of many fields , especially in high-tech fields .round loudspeaker Therefore, the national experts in the competitive development of new targeted temperature sensors and special utility measurement techniques .
Optical fiber ( short fiber ) since its inception in the 1970s , followed by the development of laser technology , from theory and practice have proved that it has a series of superiority , optical fiber sensing technology in the field of application is also increasingly widespread face . Fiber optic sensor is a state transition to be measured can be measured as an optical signal. It is composed of car receivers optocouplers , such as optical transmission fiber and the three departments. At present, to measure pressure, displacement , strain, surface , angular , linear velocity , temperature , magnetic field, current, voltage and other physical advent of fiber optic sensors to solve the traditional way of measuring difficult to solve technical problems . According to statistics, there are about hundreds of different forms of fiber optic sensors for different areas of testing. It is expected that the new wave of technological revolution , fiber optic sensors will be widely used, and trying out a greater role .
Thermocouple temperature sensor is a traditional , very versatile . In recent years, has developed a new temperature measurement technology , can fire warning has unique application . The new temperature thermistor temperature sensor called special cables, also known as continuous thermocouple Continuous Thermocouple) or heat-seeking type thermocouple (Heating mini receiver Seeking Thermocouple).
Galvanic thermistor cable using the thermoelectric effect , but measuring the temperature of the head is not even , but the hot electrode length along the highest temperature point temperature. Because of this unique feature , originally developed Micro Microphones as a high- precision technology equipment laying on aircraft carriers, destroyers ship tanks and military aircraft and other military equipment . At present, has been widely applied to various fields to prevent and reduce the “overheating” caused by accidents and losses .
Material constituting the outer protective tube : FTLD -type with double Electronic Microphones PTFE , CTTC type with Inconel . To avoid measurement environment of dust, grease and moisture and other media immersion , and temperature range of false positives caused by different , so the use of different materials . Temperature components : K-type thermocouples.
The micro speaker supposes counts match Bell the T39 blue tooth earphone evaluation
Under the harsh new friend gauge’s stipulation, very many vehicle owners have made on the way in the driving festival many, can on own initiative observe the new stipulation. But drives in the process to meet telephones to avoid with difficulty in very many situations, to solve this problem, very many vehicle owners Piezo Buzzer threw the vision have approached the blue tooth earphone. In the present market, the vehicle owner friends already are in a mainstream group which the blue tooth earphone expends. The blue tooth earphone portable easy to use, to liberate vehicle owner’s double hand, has received vehicle owner’s welcome.
Domestic well-known earphone brand match Bell near time has promoted a section of T39 blue tooth earphone, T39 is drives for the driver to suppose specially counts the development a section of blue tooth earphone, it by the blue tooth master-control unit and the earphone, ear wheat three main constitutes. But realizes blue tooth Gao Qing to talk over the telephone perfectly Magnetic Transducer and the hearing low frequency three-dimensional sound is happy, built-in may imitate the lithium battery.
The earphone for the dual purpose blue tooth earphone, the traffic safety pattern, the high quality commerce three-dimensional sound happy pattern, the built-in stereo sound codec encoder-decoder, the sound band band width reaches 3Mbps; Supports under the 1Mbps data output rate the ultra short data packet, brings the lithium battery power supply, the control is very convenient, listens happy, answers the telephone, makes the telephone call, dials the telephone and so on. Supports the three-dimensional sound to listen respectfully happy, hangs falls-like the blue tooth main body to suppose the idea to be advantageous refutes meets each kind of different earphone use.
The merit can the characteristic lie between Shao:
1. built-in stereo sound codec encoder-decoders, the blue velar band width reaches the 3Mbps high Loudspeaker speed transmission, realizes Gao Qing to talk over the telephone and the high quality listens happy.
2. advanced miniature speaker designs, in addition a2DP /AVRCP high quality stereo sound audio frequency transmission and the remote control agreement, cause music to be extremely rich the three-dimensional sense of space. The driver uses the black magnetism environmental protection design, causes to be stronger low frequency.
3.32 ohms high-resistance, causes the merit to put the belt to carry ability to be stronger, the sound field is broader.
4. support unilateral ear wheat telephone conversation and the bilateral earphone listen to music, does not disturb mutually. Causes the Micro Speaker telephone conversation clear convenience, music person or household who refuses to move and bargains for unreasonably high compensation when the land is requisitioned for a construction project joy person.
5. all kinds model earmuffs satisfy the different meatus auditorius, the environmental protection non-toxic, soft comfortable.
6. may imitate the lithium battery, the USB charge connection, the ultra long telephone conversation, waits for an opportunity, uses is more convenient, is enjoyable.
7. succinct personalized outward appearance design, is obviously lofty, is External Drive Piezo Buzzer fashionable.
8. control the operation to be simple, use time-saving convenient.
9. international 3.5mm audio frequency insertion, may from trade the earphone use.
The handset seeks balanced with the micro speaker demand steady long supplier
In the modern handset, the MP3 broadcast, the chord ting, the multimedia movie’s broadcasts, the three-dimensional encirclement sound happy and so on merit can Cheng Weizui sell the spot newly, has provided the infinite power for the micro speaker’s fast development. With the time MP3 player, PDA, the recording pen and so on its it grasped the motion product the rich also thorn to stir up unceasingly to speaker’s demand, this even more thorn has stirred up the micro speaker supplier to the market expectation, their numerous expression will Self Drive Piezo Buzzer expand the output, held the current good opportunity.
But behind the market prosperous picture, the profit which the handset makes declines with the stock pressure is worsening these supplier’s living environment. Along with the miniature speaker’s raw material rise in price, as well as recently the manufacturer market competition, the supplier could also not but simultaneously face comes from various impact. The production centralism has also brought the competition centralism, to win the market, their not only fast response fast changing demand, pays great attention the new product the research and development and necessary, but also emphasizes the product specially the quality guaranteed.
The expanded output as if already did not need the reason, the exuberant demand and did not calculate that the too thin profit entices unceasingly External Drive Magnetic Transducer is producing the manufacturer, to win takes the initiative and the booth thin production cost, the suppliers start from beginning of this year then to always enjoy increase the line to expand produce. Changzhou sound easy to pass electronic Limited company’s General Manager Wu Yifei to indicate that its present monthly output is 3,000,000, the handset uses the speaker is about 500,000. Their planned investment 20,000,000 Yuan use in the production equipment, the slotted line, the workshop and so on, estimated that will expand in the next year first half year the handset with speaker’s monthly output a time.
Shenzhen Hua Baoli electron limited company marketing department Manager Lin Renfeng displays very similarly optimistically: “the communication industry’s demand explosive growth, we will increase 10 ~ 500,000 in the fourth quarter’s output, uses in the Chung handset and non-rope telephone’s section of new 28mm specially ma pulls the speaker.”Shenzhen sea results in prestige industry limited company marketing department’s Zhang Self Drive Magnetic Transducer Guohui also to indicate that this company increased four production lines in October in the view billows, altogether achieves six, in December will put into the volume production.
Shenzhen Ling Jiadian the sound Limited company present handset with speaker’s monthly output is 400 ~ 5,000,000, its marketing department Assistant Manager Li Haipeng thought that at present was the market busy season, the customer aspect had the obvious volume of order growth phenomenon, moreover was the anxious list, they already planned the gain in yield, enhanced produces can the use factor.
Although raw material rise in price already was the recognition, but complete-system vendor pressure as if strong trend, therefore estimated that SMD Transducer the miniature speaker’s price was unable to rise, will continue to decline. The Shenzhen Hua Baoli forest strong front said: “the electro-acoustic system cost will not drop in the complete machine cost’s proportion, will improve possibly also, but the complete machine price’s large decline force manufacturer can not but reduce the speaker product cost with every effort, existing product faced with every year 5~10% reduction scope.”Changzhou sound Yi Tong Wu Yi flies also thought that the price is sliding by the every year 5~10% scopes.
Certainly, the affect price the factor also to have many. The sound electron (Shenzhen) Limited company’s General Manager Li Li analyzed said: “the consumer pursues day after day has the higher performance-to-price ratio handset, will cause the existing product profit space to be smaller, only then the variation market will induct the product only then to have the big profit space.”
Moreover, along with the international electronic processing industry to China’s rapid shift, some overseas’ speaker manufacturer settles down in China in abundance, in addition the native place additional enterprise, intensified the competition situation. Shenzhen Ling Jia Li Haipeng thought: “competition between colleague’s causes the important attribute which the price slides, certainly we also choose according to the market Mechanical Buzzer and the customer situation reduce prices on own initiative.”
For all this, also will have the speaker supplier still the anticipated product selling price to hold in the next half year steadily. The sea results in the prestige Zhang Guohui said: “product, once enters the complete-system vendor the BOM detailed list, in the product quality and in the post-sale service guarantee good situation, the product price is quite stable. We need to digest the material cost rise the pressure, carries on the cost control, maintenance price stability.”
Last year this time, the suppliers warmly were also pursuing hold the complete machine slightly regarding the product, light, the thin urgent demand, actually the opinion varies this year in the size trend of development question. The partial manufacturers positively were still pursuing a smaller size, a bigger
rectangle loudspeaker power, a wider frequency band, another part of manufacturers promote with great effort the reasonable size, guarantees speaker’s high efficiency and the clear exquisite acoustic fidelity.
Changzhou sound Yi Tong Wu Yifei firmly believed that the microminiaturization is the market hot spot. The size microminiaturization has brought in many design techniques and the fabrication technology difficulty. For in the most light-sized situation guaranteed that the output is bigger, the frequency band is wider, the acoustic fidelity is not distorted, the sound easy to cross the adjustment heat resistance performance well entirely, under the high temperature finalizes the degree high, frivolous, the high strength new material, and uses the precision high equipment to carry on the processing production. Sound Yi Tong also launches the cooperation with the German acoustics laboratory, improves unceasingly in the material aspect. Wu Yifei pointed out: “the next several year handset speaker to will paste round loudspeaker the piece type, the microminiaturization, the high efficiency, the wideband direction develops, we next step will develop the two-in-one to paste the piece type product, will use the machine welding to substitute for the manual welding, therefore the request material will have thermostablly, finalizes, the acoustic fidelity displays the good characteristic.”Sound electron’s Li Li also approves this tendency, thought that the speaker must consider how to gather with more and more big handset video frequency part appropriate match, he said: “the sound is aiming at the large screen high-end handset product application research and development miniature rectangle serial products, simultaneously plans the development ellipse two-in-one speaker.”
But Shenzhen sea results in the prestige, Hua Baoli the electron, Ling Jiadian companies and so on sound has the objection to this viewpoint. The sea results in the prestige Zhang Guohui thought that the future product size will not be smaller is better, but should be a quite reasonable size, namely 15/17/18mm. He pointed out that this company has the 10/13/15/17/18/20mm serial products, in which 10~17mm is a circular at present, 18 and 20mm is the ellipse, the 15/17/18mm size also has the two-in-one product. The sea results in the prestige in the market superiority product is precisely some moderate size product, like model and so on HEC1022-01MM, HEC1539-02SM, car receivers HEC1731-02MM, HEC1734-03 miniature speakers. HEC1731-01SM is a section of two-in-one representative the product, at the same time is the speaker, the other aspect may do is the telephone receiver use, realizes the function transformation through line’s cut, may save the space, the reduction of cost. It is said that this product started for handset manufacturer batch goods supplies and so on Kang Jia. It is composed of the 13mm telephone receiver and the 17mm speaker, is 5.2mm highly. .
The Shenzhen Hua Baoli forest strong front indicated: “we do not favor pursue the ultra light-sized product constantly, our research and development direction will also be precisely suits the future product the trend of development: Reasonable light-sized, high efficiency and high performance.”He pointed out that some customers favor not completely ultra light-sized as well as the two-in-one product, the conventional speaker are restricted in the size the deflation, when low frequency the serious distortion, in high frequency is too incisive. “we hoped that seeks for the balance point mini receiver between light-sized and the high acoustic fidelity.”Lin Renfeng also said. Shenzhen Ling Jia Li Hai the huge mythical bird also approves of this viewpoint.
Develops positively has custom-made the new product, multi-channel competes obviously the competitive advantagePursues the great variety of goods not constantly, but is concentrates the development to produce some section of market demand the product, so-called “has the market to do again first”, is the present most enterprises under the fast changeable market situation main research and development strategy, simultaneously may avoid the investment risk effectively, wins the market competition superiority.
Shenzhen sea results in the prestige to research and develop section of 20mm the two-in-one speaker, the contour for the runway ellipse, has high characteristics and so on acoustic fidelity, high power output, high SPL value. This company also specially pays great attention the quality control and the post-sale service, the product fraction defective below 0.05%. Changzhou sound Yi Tong declared that this company’s core competitiveness lies in with the market union very closely, can make the fast response to the customer demand. This company present is researching and developing a section of product for the Simens handset, uses the piezoelectric ceramics to unify the soft membrane way, makes the piezoelectricity type speaker, has a wider frequency band and a thinner Electronic Microphones contour, and has the hearing aid function. In addition sound Yi Tong makes the improvement in the product contour structure’s design, causes it easy to weld and the installment. Sound Yi Tong also in conforms to Europe’s RoHS and the WEEE instruction aspect displays prominently, plans in the year to complete all products the transformation.
Shenzhen Hua Baoli also researches and develops one section to use on the resurgence handset 28×5.3mm ma pulling the speaker, the model is MD028B0A-EE, gradually will form the quantity to produce the scale. This product’s resonance frequency is 500Hz, the impedance 8 (4~300 may elect), power 0.5~1W, SPL value for 88±3dB. Lin Renfeng introduced that the ideal frequency range was in the sounds of people frequency range, namely 120~6000Hz, but multimedia, music, the chord ting enhanced to the sound request this frequency 20000Hz. He pointed out that the pronunciation and music performance is not very same, if wants in guaranteed that under the light-sized premise both proper attention to both, can adopt the compromise way only, or placed hopes in compares a PEI polyester diaphragm more outstanding material.
In the chord ting handset’s coordination, the sound electron is also strengthening with the chip supplier’s research and development cooperation, Micro Microphones makes every effort to unfold the chord ting in the sound the different timbre, each kind of frequency band. “our superiority lies in the independent research and development core part, as well as platform vibrator design and debugging.”
But behind the market prosperous picture, the profit which the handset makes declines with the stock pressure is worsening these supplier’s living environment. Along with the miniature speaker’s raw material rise in price, as well as recently the manufacturer market competition, the supplier could also not but simultaneously face comes from various impact. The production centralism has also brought the competition centralism, to win the market, their not only fast response fast changing demand, pays great attention the new product the research and development and necessary, but also emphasizes the product specially the quality guaranteed.
The expanded output as if already did not need the reason, the exuberant demand and did not calculate that the too thin profit entices unceasingly External Drive Magnetic Transducer is producing the manufacturer, to win takes the initiative and the booth thin production cost, the suppliers start from beginning of this year then to always enjoy increase the line to expand produce. Changzhou sound easy to pass electronic Limited company’s General Manager Wu Yifei to indicate that its present monthly output is 3,000,000, the handset uses the speaker is about 500,000. Their planned investment 20,000,000 Yuan use in the production equipment, the slotted line, the workshop and so on, estimated that will expand in the next year first half year the handset with speaker’s monthly output a time.
Shenzhen Hua Baoli electron limited company marketing department Manager Lin Renfeng displays very similarly optimistically: “the communication industry’s demand explosive growth, we will increase 10 ~ 500,000 in the fourth quarter’s output, uses in the Chung handset and non-rope telephone’s section of new 28mm specially ma pulls the speaker.”Shenzhen sea results in prestige industry limited company marketing department’s Zhang Self Drive Magnetic Transducer Guohui also to indicate that this company increased four production lines in October in the view billows, altogether achieves six, in December will put into the volume production.
Shenzhen Ling Jiadian the sound Limited company present handset with speaker’s monthly output is 400 ~ 5,000,000, its marketing department Assistant Manager Li Haipeng thought that at present was the market busy season, the customer aspect had the obvious volume of order growth phenomenon, moreover was the anxious list, they already planned the gain in yield, enhanced produces can the use factor.
Although raw material rise in price already was the recognition, but complete-system vendor pressure as if strong trend, therefore estimated that SMD Transducer the miniature speaker’s price was unable to rise, will continue to decline. The Shenzhen Hua Baoli forest strong front said: “the electro-acoustic system cost will not drop in the complete machine cost’s proportion, will improve possibly also, but the complete machine price’s large decline force manufacturer can not but reduce the speaker product cost with every effort, existing product faced with every year 5~10% reduction scope.”Changzhou sound Yi Tong Wu Yi flies also thought that the price is sliding by the every year 5~10% scopes.
Certainly, the affect price the factor also to have many. The sound electron (Shenzhen) Limited company’s General Manager Li Li analyzed said: “the consumer pursues day after day has the higher performance-to-price ratio handset, will cause the existing product profit space to be smaller, only then the variation market will induct the product only then to have the big profit space.”
Moreover, along with the international electronic processing industry to China’s rapid shift, some overseas’ speaker manufacturer settles down in China in abundance, in addition the native place additional enterprise, intensified the competition situation. Shenzhen Ling Jia Li Haipeng thought: “competition between colleague’s causes the important attribute which the price slides, certainly we also choose according to the market Mechanical Buzzer and the customer situation reduce prices on own initiative.”
For all this, also will have the speaker supplier still the anticipated product selling price to hold in the next half year steadily. The sea results in the prestige Zhang Guohui said: “product, once enters the complete-system vendor the BOM detailed list, in the product quality and in the post-sale service guarantee good situation, the product price is quite stable. We need to digest the material cost rise the pressure, carries on the cost control, maintenance price stability.”
Last year this time, the suppliers warmly were also pursuing hold the complete machine slightly regarding the product, light, the thin urgent demand, actually the opinion varies this year in the size trend of development question. The partial manufacturers positively were still pursuing a smaller size, a bigger
rectangle loudspeaker power, a wider frequency band, another part of manufacturers promote with great effort the reasonable size, guarantees speaker’s high efficiency and the clear exquisite acoustic fidelity.
Changzhou sound Yi Tong Wu Yifei firmly believed that the microminiaturization is the market hot spot. The size microminiaturization has brought in many design techniques and the fabrication technology difficulty. For in the most light-sized situation guaranteed that the output is bigger, the frequency band is wider, the acoustic fidelity is not distorted, the sound easy to cross the adjustment heat resistance performance well entirely, under the high temperature finalizes the degree high, frivolous, the high strength new material, and uses the precision high equipment to carry on the processing production. Sound Yi Tong also launches the cooperation with the German acoustics laboratory, improves unceasingly in the material aspect. Wu Yifei pointed out: “the next several year handset speaker to will paste round loudspeaker the piece type, the microminiaturization, the high efficiency, the wideband direction develops, we next step will develop the two-in-one to paste the piece type product, will use the machine welding to substitute for the manual welding, therefore the request material will have thermostablly, finalizes, the acoustic fidelity displays the good characteristic.”Sound electron’s Li Li also approves this tendency, thought that the speaker must consider how to gather with more and more big handset video frequency part appropriate match, he said: “the sound is aiming at the large screen high-end handset product application research and development miniature rectangle serial products, simultaneously plans the development ellipse two-in-one speaker.”
But Shenzhen sea results in the prestige, Hua Baoli the electron, Ling Jiadian companies and so on sound has the objection to this viewpoint. The sea results in the prestige Zhang Guohui thought that the future product size will not be smaller is better, but should be a quite reasonable size, namely 15/17/18mm. He pointed out that this company has the 10/13/15/17/18/20mm serial products, in which 10~17mm is a circular at present, 18 and 20mm is the ellipse, the 15/17/18mm size also has the two-in-one product. The sea results in the prestige in the market superiority product is precisely some moderate size product, like model and so on HEC1022-01MM, HEC1539-02SM, car receivers HEC1731-02MM, HEC1734-03 miniature speakers. HEC1731-01SM is a section of two-in-one representative the product, at the same time is the speaker, the other aspect may do is the telephone receiver use, realizes the function transformation through line’s cut, may save the space, the reduction of cost. It is said that this product started for handset manufacturer batch goods supplies and so on Kang Jia. It is composed of the 13mm telephone receiver and the 17mm speaker, is 5.2mm highly. .
The Shenzhen Hua Baoli forest strong front indicated: “we do not favor pursue the ultra light-sized product constantly, our research and development direction will also be precisely suits the future product the trend of development: Reasonable light-sized, high efficiency and high performance.”He pointed out that some customers favor not completely ultra light-sized as well as the two-in-one product, the conventional speaker are restricted in the size the deflation, when low frequency the serious distortion, in high frequency is too incisive. “we hoped that seeks for the balance point mini receiver between light-sized and the high acoustic fidelity.”Lin Renfeng also said. Shenzhen Ling Jia Li Hai the huge mythical bird also approves of this viewpoint.
Develops positively has custom-made the new product, multi-channel competes obviously the competitive advantagePursues the great variety of goods not constantly, but is concentrates the development to produce some section of market demand the product, so-called “has the market to do again first”, is the present most enterprises under the fast changeable market situation main research and development strategy, simultaneously may avoid the investment risk effectively, wins the market competition superiority.
Shenzhen sea results in the prestige to research and develop section of 20mm the two-in-one speaker, the contour for the runway ellipse, has high characteristics and so on acoustic fidelity, high power output, high SPL value. This company also specially pays great attention the quality control and the post-sale service, the product fraction defective below 0.05%. Changzhou sound Yi Tong declared that this company’s core competitiveness lies in with the market union very closely, can make the fast response to the customer demand. This company present is researching and developing a section of product for the Simens handset, uses the piezoelectric ceramics to unify the soft membrane way, makes the piezoelectricity type speaker, has a wider frequency band and a thinner Electronic Microphones contour, and has the hearing aid function. In addition sound Yi Tong makes the improvement in the product contour structure’s design, causes it easy to weld and the installment. Sound Yi Tong also in conforms to Europe’s RoHS and the WEEE instruction aspect displays prominently, plans in the year to complete all products the transformation.
Shenzhen Hua Baoli also researches and develops one section to use on the resurgence handset 28×5.3mm ma pulling the speaker, the model is MD028B0A-EE, gradually will form the quantity to produce the scale. This product’s resonance frequency is 500Hz, the impedance 8 (4~300 may elect), power 0.5~1W, SPL value for 88±3dB. Lin Renfeng introduced that the ideal frequency range was in the sounds of people frequency range, namely 120~6000Hz, but multimedia, music, the chord ting enhanced to the sound request this frequency 20000Hz. He pointed out that the pronunciation and music performance is not very same, if wants in guaranteed that under the light-sized premise both proper attention to both, can adopt the compromise way only, or placed hopes in compares a PEI polyester diaphragm more outstanding material.
In the chord ting handset’s coordination, the sound electron is also strengthening with the chip supplier’s research and development cooperation, Micro Microphones makes every effort to unfold the chord ting in the sound the different timbre, each kind of frequency band. “our superiority lies in the independent research and development core part, as well as platform vibrator design and debugging.”
2013年9月11日星期三
The common sensor is any concept
The sensor widespread definition for can feel the stipulation to survey, and transforms the available output signal according to certain rule the component or the attire sets. But sensor’s function also by image and person’s sense organ to ratio. The sensor is surveyed, like the strength, the displacement, the temperature and so on,Micro Microphones transform easily to measure the signal, transmits for measurement system’s signal recuperation link, convenient people better analysis as well as processing number according.
The sensor thought that is human sense organ’s extending, is because may go with the aid of the sensor to search rope these people without the law with the sense organ direct measurement thing, the example like, may obtain the blazing object with the thermo-element the temperature; May survey the sea water depth with the ultrasonic wave detector; The remote Loudspeaker sensor may search with red outside from the upper air measured that in the ground the vegetation and the dirt dye situation and so on. Therefore, may say that the sensor is the people knew the nature powerful tool, is the metering equipment with is measured of the thing connection.
Also raises in the project for has with the input value assigns relational the output component. Is called surveys the converter. The sensor is inputs the star for the survey converter which surveys. The sensor is in the input end which the test Piezo Buzzer attire sets, its performance is making a sound the work nature quantity the direct shade which the entire test attire sets. Recent year comes, along with is surveying, the control and the information technology development, the sensor takes in these collar territory heavy to construct the factor, regarded as 20th century one of 90 year generation of key technologies receives Pu to spread regards again.
The deep research sensor’s principle and the application, the development new sensor, to lives in the society produces, the economy hands over toward, the branch study technology and lives daily lives from moves the survey and from moves the control the development, as well as the humanity observes the practical significance which the research nature depth and the breadth have want again. More sensors will be waited for by more applications in the people the broken profession, the sensor technology forever will be people suddenly who Magnetic Transducer will study the custom.
The torque sensor enterprise should have the long-term development judgment
In the sensor market may say that is rises gradually warm, on torque sensor’s development, although the torque sensor enterprise Micro Speaker obtained the very big progress now, but was the consumer must ask still to send, the torque sensor enterprise must from open the beginning standard from the body, was guiding the consumer behavior the process, could not consider only the chase benefit, must cause the consumer rights and interests to obtain root this safeguard.
In fact says to the consumer, actually he often did not know that different torque sensor brand between product difference different in which mile, sometimes purely hoodwinks by price this thing, therefore torque sensor enterprise, in this consumer must ask in the prosperous abundant market conditions, must do is consumer’s guidance and the education. The guidance and the education, may hold the beginning from the torque sensor enterprise interior staff, looks like the torque sensor’s superior potential, the staff must be clear. Let the consumer realize that to the torque sensor’s advantage, which mile is good because. But how does this guidance’s high sign not only lie in the torque sensor enterprise to propagandize arrives, but must include in can check strictly from External Drive Piezo Buzzer the body product on.
The consumer is not after is forever blind the item passively, much less will occupy the present this information explosion the time generation, the torque sensor profession from the body also along with the unceasing development, but will be unceasing the friendly profession rule, the torque sensor market’s admittance threshold more and more will be only higher, if the torque sensor enterprise will attempt the temporary advantage only, will then be spurned very quickly by the consumer, will cause finally withering away. The torque sensor enterprise should have the long-term development judgment, like Self Drive Piezo Buzzer this only then can stand in the market invincible position.
About project observation in commonly used sensor
The sensor was measured that the physical quantity transforms for with it should, and easy to examine, the transmission or the processing signal attire sets. The sensor is test system’s key link, is shouldering the signal conversion, no matter what serves, if strength, stress, pressure, External Drive Magnetic Transducer torque, displacement, speed, Canadian speed, temperature, current capacity and time and so on was measured the non-electrical quantity transforms with it to should, easy to process and the transmission electric power (voltage, electric current) or the electricity parameter (resistance, inductance and electric capacity and so on). Sensor’s performance direct shade is making a sound the entire test and control system’s operational reliability.
The sensor may divide into two broad headings according to its principle of work: One kind is the electricity generation type sensor, it transforms the non-electrical quantity into the electromotive force. The example like, the voltage Self Drive Magnetic Transducer which sends out using the generator the characteristic which is proportional with its rotational speed, may take the small generator the survey rotational speed the sensor. Leaves can have the electromotive force in this kind of sensor itself, therefore cannot want the external power. Another kind is the parameter type sensor, it measured that the non-electrical quantity transforms into electricity parameter and so on resistance, inductance and electric capacity changes, like resistance strain gauge type sensor, inductive transceiver and electric capacity sensor and so on. This kind of sensor must want the external power generally.
Sensor’s output electricity surely must with measure that the non-electrical quantity has the monodrome function relations, and can as far as possible for the linear relationship. Requests the sensor to have the high precision and the sensitivity, good stability and dynamic characteristic. Outside this also requests SMD Transducer the knot to construct Jan Dan, durable and the seal is moisture-proof, has certain anti-knocking performance and to surveys the environment to have the strong compatibility.
About pressure transmitter negative pressure indication
The pressure transmitter uses for to measure that the negative pressure or the vacuum degree meet frequently, will contact the negative pressure pressure transmitter’s person to discover that frequently the general negative pressure sensor measured the negative pressure the greatest measuring range will be – 100kpa Mechanical Buzzer or is – 0.1MPA. But had few factories saying that could measure – 300kpa was even lower, how was this a matter?
Actually this is two different angle analyzes. Studies physics to know that vacuum the pressure is – 100kpa, therefore said the general pressure transmitter surveys the minimal pressure pressure is – 100kpa is the root comes according to this, therefore in the market condition negative pressure sensor base this on is measures – 100kap feeble-mindedly, how is that – 300kpa sensor a matter? – 300kpa is not actually refers to the atmospheric pressure to come, in physics is fastidious about a frame of reference, you may understand like this, fills 300kpa in inside a seal’s box the compressed gas, inside the wrap is putting a vacuum box, inside we use the negative pressure sensor to place in the big box to survey the small car receivers box’s pressure, will obviously like this show – 300kpa, therefore said that – the 300kpa pressure will be produces like this. It refers to the atmospheric pressure.
Had understood this concept chooses the negative pressure sensor to us has the help very much, like this we will not choose the wrong pressure transmitter, will this be our guild merchant household round loudspeaker selection pressure sensor’s time period of five days first will ask why that frequently his use environment asked again his measuring range will be how many. Only will then like this only then not choose the wrong pressure transmitter.
Actually this is two different angle analyzes. Studies physics to know that vacuum the pressure is – 100kpa, therefore said the general pressure transmitter surveys the minimal pressure pressure is – 100kpa is the root comes according to this, therefore in the market condition negative pressure sensor base this on is measures – 100kap feeble-mindedly, how is that – 300kpa sensor a matter? – 300kpa is not actually refers to the atmospheric pressure to come, in physics is fastidious about a frame of reference, you may understand like this, fills 300kpa in inside a seal’s box the compressed gas, inside the wrap is putting a vacuum box, inside we use the negative pressure sensor to place in the big box to survey the small car receivers box’s pressure, will obviously like this show – 300kpa, therefore said that – the 300kpa pressure will be produces like this. It refers to the atmospheric pressure.
Had understood this concept chooses the negative pressure sensor to us has the help very much, like this we will not choose the wrong pressure transmitter, will this be our guild merchant household round loudspeaker selection pressure sensor’s time period of five days first will ask why that frequently his use environment asked again his measuring range will be how many. Only will then like this only then not choose the wrong pressure transmitter.
In the humiture sensor the humidity calibration and tries to examine
In the humiture sensor the humidity calibration and tries to examine has two methods, namely or and the known performance’s instrument carries on the comparison using the humidity base, the humidity base may establishes using the thioketone or the hydrochloride potassium solution, or establishes using the saturated salts solution. Control technology regulation, no matter what what situation, must pay attention to the selection the splendid attire spatial gas sample vessel India solution to save the good seal. Does not allow its temperature to have mini receiver the change, moreover achieves balanced must have the enough time. In fact in during the certain circumstances, when which is balanced is very long, however uses the suction pump to pump the spatial gas from vessel item and to cause the spatial gas to pass the solution to have the air bubble, may reduce this kind of balance process obviously.
No matter with any means that some independent survey these base accurate humidity method always good, namely uses this independent method to have the medium accuracy only, when it will also refer shows already achieved is balanced and avoids a more serious error. Or uses this form the humidity base most main limitation to lie in them not to be able to use for to try to examine or to calibrate these sensors not to bring the gross error. Because these sensors will take up water either steam flood the minute (example like dew point meter or psychrometer) or because the introduction gradient of temperature (for example will chlorinate Niu or dew point meter) changes the local environment. Electronic Microphones In order to survey accurately, this method request has the suitable air current flow.
No matter what the calibration the what type sensor’s most reliable method is: Under the actual damp condition, carries on with a known performance good instrument to compared to, 50,190% scopes pass to the humidity often may find in the summer noon and the midnight, but the outside method, the example like continues the flowing in addition in the civil bathroom interconnection the spraying of water, can be suitable for the high temperature scope use, 50% below to the humidity, sometimes may add the hot cell in the center to obtain, may also use the electric heater in the indoor artificial manufacture. Indoor to the humidity in 20℃ often is 60%, rises the temperature to arrive high 32℃, may reduce 3096 to the humidity. Serves as the humidity base accurate best instrument is the psychrometer and the dew point meter, the dew point meter has calibrated accurately the thermometer, with and so on Micro Microphones is accurate with the spatial gas temperature’s survey, will therefore give the reliable humidity number value, when will do not hesitate the high price, Asi will pass the wind psychrometer is the ideal instrument gracefully, but to in the majority item of rotary system type psychrometer is also the enough accurate instrument, will have many people to approve that will use the Jan Dan rotary system type psychrometer to take a base this sign accurate humidity instrument, to will illuminate Piezo Buzzer it to try to examine and to calibrate other more special instrument.
No matter with any means that some independent survey these base accurate humidity method always good, namely uses this independent method to have the medium accuracy only, when it will also refer shows already achieved is balanced and avoids a more serious error. Or uses this form the humidity base most main limitation to lie in them not to be able to use for to try to examine or to calibrate these sensors not to bring the gross error. Because these sensors will take up water either steam flood the minute (example like dew point meter or psychrometer) or because the introduction gradient of temperature (for example will chlorinate Niu or dew point meter) changes the local environment. Electronic Microphones In order to survey accurately, this method request has the suitable air current flow.
No matter what the calibration the what type sensor’s most reliable method is: Under the actual damp condition, carries on with a known performance good instrument to compared to, 50,190% scopes pass to the humidity often may find in the summer noon and the midnight, but the outside method, the example like continues the flowing in addition in the civil bathroom interconnection the spraying of water, can be suitable for the high temperature scope use, 50% below to the humidity, sometimes may add the hot cell in the center to obtain, may also use the electric heater in the indoor artificial manufacture. Indoor to the humidity in 20℃ often is 60%, rises the temperature to arrive high 32℃, may reduce 3096 to the humidity. Serves as the humidity base accurate best instrument is the psychrometer and the dew point meter, the dew point meter has calibrated accurately the thermometer, with and so on Micro Microphones is accurate with the spatial gas temperature’s survey, will therefore give the reliable humidity number value, when will do not hesitate the high price, Asi will pass the wind psychrometer is the ideal instrument gracefully, but to in the majority item of rotary system type psychrometer is also the enough accurate instrument, will have many people to approve that will use the Jan Dan rotary system type psychrometer to take a base this sign accurate humidity instrument, to will illuminate Piezo Buzzer it to try to examine and to calibrate other more special instrument.
2013年8月26日星期一
Displacement sensor data for several reasons beating
There are many moving sensor, linear displacement sensors, slider displacement sensors, magnetostrictive displacement sensors, laser displacement sensor and so on. Which is the most widely round loudspeaker used linear displacement sensors, we use the sensor data often occur when the beating, which is mainly composed of the following reasons.
First of all, this is the case you need to check the cable insulation is not damaged phenomenon occurs, and with the machine very regular contact with the shell caused by a short to ground. Secondly, the installation of the neutral linear displacement sensor needs well, but allows a parallelism error of ± 0.5mm, angle allows a ± 12 ° errors. However, if the parallel and angular errors are too large, then this will appear showing the number of beats situation. So when this happens, it must be carried out on the parallel and angular adjusted. Again, the three linear displacement sensors can not pick the wrong line, power lines and output lines are not swapped for. If the above lines are wrong, then there will be great car receivers linearity error situation, it is difficult to control, the control accuracy will become poor, and the display is prone to beating phenomenon and so on. There is FM interference and electrostatic interference may allow linear displacement transducer electronic digital display ruler beating. Therefore, the electronic device signal lines and equipment power lines to separate trunking. Electronic device must be mandatory grounded. Signal lines need to use shielded cable, and electrical box with a shielded cable should be grounded. If there are high-frequency interference, usually when the voltage measurement using a multimeter will display properly, but the display will jump mini receiver number is kept; arising from electrostatic interference occurs when the situation is the same with the high-frequency interference. To prove to see whether it is static, just use a power cord of the electronic foot screw capping machine with a certain number of metal shorting up on it, as long as a short pick up, it will immediately eliminate static interference . But if you want to eliminate
Electronic Microphones high-frequency interference is difficult to use the above method, you can try to suspend the high-frequency interference sources, see Showing results would be better, in order to judge is not high-frequency interference.
Understand the reasons for the displacement sensor data beat is very helpful for us, usually we do not encounter such a pvc clear sheet situation would not know why, on the contrary we can take the appropriate measures to deal with, regard, we make better use of linear displacement transducer .
Modern sensor presents new features under development
With the modernization progresses, the sensor Mechanical Buzzer is gradually updated, modern sensor development process presents several new features below. We can take a look.
First, the new material is applied to the sensor more fields, especially atomic materials, nano-materials. These new materials makes the sensor in the electrical, mechanical and physical properties are more prominent, so you can show a stronger sensitivity. Second, the integration and miniaturization. Sensor size is less and less, but this did not affect the performance of the play. On the basis of miniaturization, integration has become a new trend, and more functions are integrated together, so that the application is broader, more versatile. Again, the sensor costs are also reduced. On the one hand sensor technology and process continues to mature and develop, making the cost will be reduced. On the other hand, the cost of new materials and new manufacturing technology, the sensor rectangle loudspeaker will promote cost reduction. For example, some additive technology, 3D printing technology. Finally, the sensor changes are evolutionary rather than revolutionary, it will not happen overnight, anyway, take some time, will over time be able to perform more complex functions.
Over the course of development of modern sensors showing the new features, with the development of sensors, these features will become increasingly obvious, but there will be some new features presented. But the performance and stability of the sensor will be more and more pvc foam board toward the development of good aspects.
The most important of the four pressure sensor element
Every day, many customer inquiries pressure sensors, pressure sensors generally only know the customer is to convert physical pressure on the telecommunications External Drive Magnetic Transducer signals for our analysis and utilization. But few customers know the internal structure of the pressure sensor is what, in fact, a pressure sensor on the four most important components, namely converting element, sensitive components, measurement devices and auxiliary power.
Pressure sensors are generally sensitive components, conversion element, measuring element composed of several parts, and sometimes also added auxiliary power supply. Conversion element is sensitive to changes in the element output signal to facilitate the measurement. Feel sensitive element is measured directly and Self Drive Magnetic Transducer outputs are determined by measuring the amount of components other relationship. Measuring element is the output signal is converted to an electrical signal for further transmission, processing, display, recording or control convenience. Auxiliary power supply must be marked as a product requirement, but not as part of a pressure sensor. Now generally will be equipped with a pressure sensor auxiliary power supply to facilitate customers to use.
These four elements supporting the pressure sensor, especially conversion element, SMD Transducersensor, measuring elements of these three components can be said that an indispensable part of the pressure sensor, pressure sensor update actually developed these components are also pvc sheet updated on developments. But no matter how the development of pressure sensors, which are made of several components is that this can not be changed.
Common sensor is a concept
Broad definition of the sensor to be able to feel the provisions are measured, according to certain rules to convert the output signal of the device or devices. The role of Micro Speaker the sensor is also the image contrast and the human sense organs. Sensors to be measured, such as force, displacement, temperature, etc., into easily measured signal, transmitted to the signal conditioning part of the measuring system, convenient better analysis and data processing.
The sensor senses that the extension of the human, is due to explore means of sensors can sense that it can not be measured directly things, for example, can be measured with a thermocouple temperature of hot objects; ultrasonic probe can be measured with a water depth; using infrared remote sensor can detect the External Drive Piezo Buzzer ground from a height of vegetation and pollution and so on. Therefore, it can be said sensor is a powerful tool for people to understand the natural world, is the instrument and test the interfaces between things.
Is also in the works to provide input to a given amount of output relationship of the device. Called the measurement transducer. Enter the star sensor is measuring transducer to be measured. Sensor input of the device under test, will directly affect the performance of the test the quality of operation of the device. In recent years, with the measurement, control and development of information technology, sensors, as these areas constitutes an important factor to be considered in the 1990s is one of the key technologies and by the universal Self Drive Piezo Buzzer attention.
In-depth study and application of the principle of the sensor, the development of new sensors, the social production, economic exchanges, science and technology and everyday life automatic measurement and automatic control of development, as well as observational studies of human nature, depth and breadth has important practical significance. More sensors will be more applications in the industry to be a breakthrough in people, pvc board sensor technology will always be learning a people.
Pressure sensor routine maintenance methods
Pressure sensors have been Piezo Buzzer widely used in many environments need to be applied both to the pressure sensor, maybe we know how to choose the pressure sensor, but also know how to use a pressure sensor, but do you know how to maintain the pressure sensor it? Routine maintenance pressure sensors are those methods?
Pressure sensor manufacturers generally one year warranty, and some two-year warranty, but manufacturers will often go without which you maintain the pressure sensor, so we still need to know about the pressure sensor routine maintenance methods. There are about 8 o'clock: one, to prevent the waste deposited in the conduit and sensors with corrosive or hot media contacts. 2, the measurement of gas pressure, the pressure port should be open in the flow line to the top, and the sensor should be installed in the upper part of the process piping so that the accumulation of fluid injected into the process pipeline easily. 3, measuring fluid pressure, the pressure port should be opened in the side of the pipeline process, in order to avoid deposition Magnetic Transducer of slag accumulation. 4, guide pressure pipe should be installed in place of small fluctuations in temperature. 5, measuring liquid pressure, the sensor should be installed to avoid the impact of the liquid (water hammer phenomenon), in order to avoid overvoltage damage the sensor. 6, winter freezing occurs when the sensor is installed outdoors freezing measures must be taken to avoid the impulse in the mouth due to icing fluid volume expansion, resulting in loss of the sensor. 7, the wiring, the cable through the waterproof connector or entangling pipe and tighten the nut tight seal to prevent leakage of rainwater through the cable into the transmitter housing. 8, the measurement of steam or other high temperature medium, the need to take additional buffer tube (coils) and other condenser operating temperature of the sensor should not Loudspeaker exceed the limit.
Understand the above points pressure sensor routine maintenance method is very helpful to us, so as to ensure that our pressure sensor with longer and more stable performance. Of course, this is just routine maintenance points, there pvc film are other needs attention, such as after a year can be sent back to the factory for calibration, offset, appears to prevent the sensor.
2013年8月6日星期二
The handset seeks balanced with the miniature speaker demand steady long supplier
In presently a generation of handset, the MP3 broadcast, the chord ting, the multimedia movie’s broadcasts, the three-dimensional link circle functions and so on music to become the newest selling point, has Self Drive Magnetic Transducer provided the infinite power for the miniature speaker’s fast development. Simultaneously the MP3 player, PDA, the recording pen and so on other hand-hold migration product did not break abundantly rich has also stimulated to speaker’s demand, this has even more stimulated the miniature speaker supplier to the city field expectation, he expressed in abundance will expand the output, held before working as, good opportunity.
But behind the market prosperous picture, the profit which the handset makes declines with the stock pressure is worsening these supplier’s living environment. Along with the miniature speaker’s raw material rise in price, as well as recently the manufacturer market competition, the supplier SMD Transducer could also not but simultaneously face comes from various impact. The production centralism has also brought the competition centralism, to win the market, their not only fast response fast changing demand, pays great attention the new product the research and development and necessary, but also emphasizes the product specially the quality guaranteed.
The expanded output as if already did not need the reason, the exuberant demand and did not calculate that the too thin profit entices unceasingly is producing the manufacturer, to win takes the initiative and the booth thin production cost, the suppliers start from beginning of this year then to always enjoy increase the line to expand Mechanical Buzzer produce. Changzhou sound easy to pass electronic Limited company’s General Manager Wu Yifei to indicate that its present monthly output is 3,000,000, the handset uses the speaker is about 500,000. Their planned investment 20,000,000 Yuan use in the production equipment, the slotted line, the workshop and so on, estimated that will expand in the next year first half year the handset with speaker’s monthly output a time.
Shenzhen Hua Baoli electron limited company marketing department Manager Lin Renfeng displays very similarly optimistically: “the communication industry’s demand explosive growth, we will increase 10 ~ 500,000 in the fourth quarter’s output, uses in the Chung handset and non-rope telephone’s section of new 28mm specially ma pulls the speaker.”Shenzhen sea results in prestige industry limited company rectangle loudspeaker marketing department’s Zhang Guohui also to indicate that this company increased four production lines in October in the view billows, altogether achieves six, in December will put into the volume production.
Before an item, handset with speaker’s monthly output quantity is 400 ~ 5,000,000, its marketing department assistant manager manages Li Haipeng to recognize before the item is the city field prosperous season, guest household Fang Mian had Ming Xian the volume of order quantity to increase long presently looks like, moreover is the anxious list, he increased after the plan adds the output, round loudspeaker enhances produces can the use factor rate.
Although raw material rise in price already was the recognition, but complete-system vendor pressure as if strong trend, therefore estimated that the miniature speaker’s price was unable to rise, will continue to decline. The Shenzhen Hua Baoli forest strong front said: “the electro-acoustic system cost will not drop in the complete machine cost’s proportion, will improve possibly also, but the complete machine price’s large decline force manufacturer can not but reduce the speaker product cost with every effort, existing product faced with every year 5~10% reduction scope.”Changzhou car receivers sound Yi Tong Wu Yi flies also thought that the price is sliding by the every year 5~10% scopes.
Moreover, along with the international electronic processing industry to China’s rapid shift, some overseas’ speaker manufacturer settles down in China in abundance, in addition the native place additional enterprise, intensified the competition situation. “competition between colleague’s causes the important attribute which the price slides, certainly we also choose according to the market and the customer situation reduce prices on own initiative.”
For all this, also will have the speaker supplier still the anticipated product selling price to hold in the next half year steadily.: “product, once enters the complete-system vendor mini receiver the BOM detailed list, in the product quality and in the post-sale service guarantee good situation, the product price is quite stable. We need to digest the material cost rise the pressure, carries on the cost control, maintenance price stability.”
The size question opinion varies, the high quality pursue eternally unchangings
Last year this time, the suppliers warmly were also pursuing hold the complete machine slightly regarding the product, light, the thin urgent demand, actually the opinion varies this year in the size trend of development question. The partial manufacturers positively were still pursuing a smaller size, a bigger power, a wider frequency band, another part of manufacturers promote Electronic Microphones with great effort the reasonable size, guarantees speaker’s high efficiency and the clear exquisite acoustic fidelity.
The size microminiaturization has brought in many design techniques and the fabrication technology difficulty. For in the most light-sized situation guaranteed that the output is bigger, the frequency band is wider, the acoustic fidelity is not distorted, the sound easy to cross the adjustment heat resistance performance well entirely, under the high temperature finalizes the degree high, frivolous, the high strength new material, and uses the precision high equipment to carry on the processing production. Sound Yi Tong also launches the cooperation with the German acoustics Micro Microphones
laboratory, improves unceasingly in the material aspect. Wu Yifei pointed out: “the next several year handset speaker to will paste the piece type, the microminiaturization, the high efficiency, the wideband direction develops, we next step will develop the two-in-one to paste the piece type product, will use the machine welding to substitute for the manual welding, therefore the request material will have thermostablly, finalizes, the acoustic fidelity displays the good characteristic.”Sound electron’s Li Li also approves this tendency, thought that the speaker must consider how to gather with more and more big handset video frequency part appropriate match, he said: “the sound is aiming at the large screen high-end handset product application research and development miniature rectangle serial products, simultaneously plans the development ellipse two-in-one speaker.”
Future the product size will not be smaller is better, but should be a quite reasonable size, namely 15/17/18mm. He pointed out that this company has the 10/13/15/17/18/20mm serial products, in which 10~17mm is a circular at present, 18 and 20mm is the ellipse, the 15/17/18mm size also has the two-in-one product. The sea results in the prestige in the market superiority product is precisely some moderate size product, like model and so on HEC1022-01MM, HEC1539-02SM, HEC1731-02MM, HEC1734-03 miniature speakers. HEC1731-01SM is a section of two-in-one representative the product, at the same time is the speaker, the other aspect may do is the telephone receiver use, realizes the function transformation through line’s cut, may save the space, the reduction of cost. It is said that this product started for handset manufacturer batch goods supplies and so on Kang Jia. It is composed of the 13mm telephone receiver and the 17mm speaker, is 5.2mm highly. .
“I did not look pursues constantly asks the ultra light-sized inch product, I researches and develops Fang Xiang is also precisely cuts gathers has not come the product the development Piezo Buzzer to hasten the potential: Gathers principle the light-sized inch, the big power and the high performance.”He refers to some guest household to lean to in ultra light-sized inch as well as a two-in-one product, often the gauge speaker shrinks limited to Yu Chicun reduces, when low frequency the strict heavy distortion, in high frequency crosses Yu Jianrui. “I hope look between seek for the balance point in light-sized inch and the high acoustic fidelity.”Lin Renfeng made up said sufficiently. Deep dike Ling Jia Li Hai the huge mythical bird also approves with this view spot.
Develops positively has custom-made the new product, multi-channel competes obviously the competitive advantage
Pursues the great variety of goods not constantly, but is concentrates the development to produce some section of market demand the product, so-called “has the market to do again first”, is the present most enterprises under the fast changeable market situation main research and development strategy, simultaneously may avoid the investment risk effectively, wins the market competition superiority.
Is researching and developing section of 20mm the two-in-one speaker, the contour for the runway ellipse, has high characteristics and so on acoustic fidelity, high power output, high SPL value. This company also specially pays great attention the quality control and the post-sale service, the product fraction defective below 0.05%. Changzhou sound Yi Tong declared that this company’s core competitiveness lies in with the market union very closely, can make the fast response to the customer demand. This company present is researching and developing a section of product for the Simens handset, uses the Self Drive Piezo Buzzer piezoelectric ceramics to unify the soft membrane way, makes the piezoelectricity type speaker, has a wider frequency band and a thinner contour, and has the hearing aid function. In addition sound Yi Tong makes the improvement in the product contour structure’s design, causes it easy to weld and the installment. Sound Yi Tong also in conforms to Europe’s RoHS and the WEEE instruction aspect displays prominently, plans in the year to complete all products the transformation.
Also researches and develops one section to use on the resurgence handset 28×5.3mm ma pulling the speaker, the model is MD028B0A-EE, gradually will form the quantity to produce the scale. This product’s resonance frequency is 500Hz, the impedance 8 (4~300 may elect), power 0.5~1W, SPL value for 88±3dB. Lin Renfeng introduced that the ideal frequency range was in the sounds of people frequency range, namely 120~6000Hz, but multimedia, music, the chord ting enhanced to the sound External Drive Magnetic Transducer request this frequency 20000Hz. He pointed out that the pronunciation and music performance is not very same, if wants in guaranteed that under the light-sized premise both proper attention to both, can adopt the compromise way only, or placed hopes in compares a PEI polyester diaphragm more outstanding material.
In the chord ting handset’s coordination, the sound electron is also strengthening with the chip supplier’s research and development cooperation, makes every effort to unfold the chord ting in the sound the different timbre, each kind of frequency band. “our superiority lies in the independent research and development core part, as well as platform vibrator design and debugging.”
But behind the market prosperous picture, the profit which the handset makes declines with the stock pressure is worsening these supplier’s living environment. Along with the miniature speaker’s raw material rise in price, as well as recently the manufacturer market competition, the supplier SMD Transducer could also not but simultaneously face comes from various impact. The production centralism has also brought the competition centralism, to win the market, their not only fast response fast changing demand, pays great attention the new product the research and development and necessary, but also emphasizes the product specially the quality guaranteed.
The expanded output as if already did not need the reason, the exuberant demand and did not calculate that the too thin profit entices unceasingly is producing the manufacturer, to win takes the initiative and the booth thin production cost, the suppliers start from beginning of this year then to always enjoy increase the line to expand Mechanical Buzzer produce. Changzhou sound easy to pass electronic Limited company’s General Manager Wu Yifei to indicate that its present monthly output is 3,000,000, the handset uses the speaker is about 500,000. Their planned investment 20,000,000 Yuan use in the production equipment, the slotted line, the workshop and so on, estimated that will expand in the next year first half year the handset with speaker’s monthly output a time.
Shenzhen Hua Baoli electron limited company marketing department Manager Lin Renfeng displays very similarly optimistically: “the communication industry’s demand explosive growth, we will increase 10 ~ 500,000 in the fourth quarter’s output, uses in the Chung handset and non-rope telephone’s section of new 28mm specially ma pulls the speaker.”Shenzhen sea results in prestige industry limited company rectangle loudspeaker marketing department’s Zhang Guohui also to indicate that this company increased four production lines in October in the view billows, altogether achieves six, in December will put into the volume production.
Before an item, handset with speaker’s monthly output quantity is 400 ~ 5,000,000, its marketing department assistant manager manages Li Haipeng to recognize before the item is the city field prosperous season, guest household Fang Mian had Ming Xian the volume of order quantity to increase long presently looks like, moreover is the anxious list, he increased after the plan adds the output, round loudspeaker enhances produces can the use factor rate.
Although raw material rise in price already was the recognition, but complete-system vendor pressure as if strong trend, therefore estimated that the miniature speaker’s price was unable to rise, will continue to decline. The Shenzhen Hua Baoli forest strong front said: “the electro-acoustic system cost will not drop in the complete machine cost’s proportion, will improve possibly also, but the complete machine price’s large decline force manufacturer can not but reduce the speaker product cost with every effort, existing product faced with every year 5~10% reduction scope.”Changzhou car receivers sound Yi Tong Wu Yi flies also thought that the price is sliding by the every year 5~10% scopes.
Moreover, along with the international electronic processing industry to China’s rapid shift, some overseas’ speaker manufacturer settles down in China in abundance, in addition the native place additional enterprise, intensified the competition situation. “competition between colleague’s causes the important attribute which the price slides, certainly we also choose according to the market and the customer situation reduce prices on own initiative.”
For all this, also will have the speaker supplier still the anticipated product selling price to hold in the next half year steadily.: “product, once enters the complete-system vendor mini receiver the BOM detailed list, in the product quality and in the post-sale service guarantee good situation, the product price is quite stable. We need to digest the material cost rise the pressure, carries on the cost control, maintenance price stability.”
The size question opinion varies, the high quality pursue eternally unchangings
Last year this time, the suppliers warmly were also pursuing hold the complete machine slightly regarding the product, light, the thin urgent demand, actually the opinion varies this year in the size trend of development question. The partial manufacturers positively were still pursuing a smaller size, a bigger power, a wider frequency band, another part of manufacturers promote Electronic Microphones with great effort the reasonable size, guarantees speaker’s high efficiency and the clear exquisite acoustic fidelity.
The size microminiaturization has brought in many design techniques and the fabrication technology difficulty. For in the most light-sized situation guaranteed that the output is bigger, the frequency band is wider, the acoustic fidelity is not distorted, the sound easy to cross the adjustment heat resistance performance well entirely, under the high temperature finalizes the degree high, frivolous, the high strength new material, and uses the precision high equipment to carry on the processing production. Sound Yi Tong also launches the cooperation with the German acoustics Micro Microphones
laboratory, improves unceasingly in the material aspect. Wu Yifei pointed out: “the next several year handset speaker to will paste the piece type, the microminiaturization, the high efficiency, the wideband direction develops, we next step will develop the two-in-one to paste the piece type product, will use the machine welding to substitute for the manual welding, therefore the request material will have thermostablly, finalizes, the acoustic fidelity displays the good characteristic.”Sound electron’s Li Li also approves this tendency, thought that the speaker must consider how to gather with more and more big handset video frequency part appropriate match, he said: “the sound is aiming at the large screen high-end handset product application research and development miniature rectangle serial products, simultaneously plans the development ellipse two-in-one speaker.”
Future the product size will not be smaller is better, but should be a quite reasonable size, namely 15/17/18mm. He pointed out that this company has the 10/13/15/17/18/20mm serial products, in which 10~17mm is a circular at present, 18 and 20mm is the ellipse, the 15/17/18mm size also has the two-in-one product. The sea results in the prestige in the market superiority product is precisely some moderate size product, like model and so on HEC1022-01MM, HEC1539-02SM, HEC1731-02MM, HEC1734-03 miniature speakers. HEC1731-01SM is a section of two-in-one representative the product, at the same time is the speaker, the other aspect may do is the telephone receiver use, realizes the function transformation through line’s cut, may save the space, the reduction of cost. It is said that this product started for handset manufacturer batch goods supplies and so on Kang Jia. It is composed of the 13mm telephone receiver and the 17mm speaker, is 5.2mm highly. .
“I did not look pursues constantly asks the ultra light-sized inch product, I researches and develops Fang Xiang is also precisely cuts gathers has not come the product the development Piezo Buzzer to hasten the potential: Gathers principle the light-sized inch, the big power and the high performance.”He refers to some guest household to lean to in ultra light-sized inch as well as a two-in-one product, often the gauge speaker shrinks limited to Yu Chicun reduces, when low frequency the strict heavy distortion, in high frequency crosses Yu Jianrui. “I hope look between seek for the balance point in light-sized inch and the high acoustic fidelity.”Lin Renfeng made up said sufficiently. Deep dike Ling Jia Li Hai the huge mythical bird also approves with this view spot.
Develops positively has custom-made the new product, multi-channel competes obviously the competitive advantage
Pursues the great variety of goods not constantly, but is concentrates the development to produce some section of market demand the product, so-called “has the market to do again first”, is the present most enterprises under the fast changeable market situation main research and development strategy, simultaneously may avoid the investment risk effectively, wins the market competition superiority.
Is researching and developing section of 20mm the two-in-one speaker, the contour for the runway ellipse, has high characteristics and so on acoustic fidelity, high power output, high SPL value. This company also specially pays great attention the quality control and the post-sale service, the product fraction defective below 0.05%. Changzhou sound Yi Tong declared that this company’s core competitiveness lies in with the market union very closely, can make the fast response to the customer demand. This company present is researching and developing a section of product for the Simens handset, uses the Self Drive Piezo Buzzer piezoelectric ceramics to unify the soft membrane way, makes the piezoelectricity type speaker, has a wider frequency band and a thinner contour, and has the hearing aid function. In addition sound Yi Tong makes the improvement in the product contour structure’s design, causes it easy to weld and the installment. Sound Yi Tong also in conforms to Europe’s RoHS and the WEEE instruction aspect displays prominently, plans in the year to complete all products the transformation.
Also researches and develops one section to use on the resurgence handset 28×5.3mm ma pulling the speaker, the model is MD028B0A-EE, gradually will form the quantity to produce the scale. This product’s resonance frequency is 500Hz, the impedance 8 (4~300 may elect), power 0.5~1W, SPL value for 88±3dB. Lin Renfeng introduced that the ideal frequency range was in the sounds of people frequency range, namely 120~6000Hz, but multimedia, music, the chord ting enhanced to the sound External Drive Magnetic Transducer request this frequency 20000Hz. He pointed out that the pronunciation and music performance is not very same, if wants in guaranteed that under the light-sized premise both proper attention to both, can adopt the compromise way only, or placed hopes in compares a PEI polyester diaphragm more outstanding material.
In the chord ting handset’s coordination, the sound electron is also strengthening with the chip supplier’s research and development cooperation, makes every effort to unfold the chord ting in the sound the different timbre, each kind of frequency band. “our superiority lies in the independent research and development core part, as well as platform vibrator design and debugging.”
Industry sensor shaping six big basic principles
Does the modern sensor in the principle and the structure the infinite variety, how act according to the concrete survey goal, the survey object as well as the survey environment selects the sensor reasonably, the question which is when carries on some quantity survey must first solve. After Self Drive Magnetic Transducer sensor determination, might also determine with it necessary measuring technique and the measurement equipment. Measurement result’s success or failure, is decided to a great extent in the sensor selects whether reasonably.
1st, determines sensor’s type according to the survey object and the survey environment
Must carry on – the concrete surveying work, must first consider that uses what kind of principle the sensor, after this needs to analyze various factor, can determine. Because, even if is the survey identical physical quantity, also has many kinds of principle sensors to be possible to supply to select, which one kind of principle’s sensor is more appropriate, below then needs according to survey the characteristic and sensor’s exploitation conditions consider some concrete questions: Measuring range size; Is measured the position to the sensor volume request; The measurement mode for the contact type is also the non-contact type; The signal draws out the method, wired or is the non-contact survey; Sensor’s origin, the domestic product imports, whether does the price withstand, independently develops.
After considering the above question can determine that selects what type SMD Transducer the sensor, then considers sensor’s concrete performance index again.
2nd, sensitivity choice
Usually, in sensor’s linearity range, hoped that sensor’s sensitivity is higher is better. Because only then the sensitivity is high time, with is surveyed the change correspondence the output signal value to be only then quite big, is advantageous to the signal processing. But must pay attention, sensor’s sensitivity is high, with is surveyed the ambient noise which has nothing to do with also to mix in easily, also will be enlarged by the amplifying system, affects the measuring accuracy. Therefore, requests the sensor itself to have the high signal-to-noise ratio, reduces as far as possible from the outside introduction unwanted signal.
Sensor’s sensitivity has the directivity. Mechanical Buzzer When by the survey is the unidirectional quantity, moreover is high to its directive request, should choose the other direction sensitivity small sensor; If by the survey is the multi-dimensional vector, then requests sensor’s overlapping sensitivity to be smaller is better.
3rd, frequency-response characteristic
Sensor’s frequency-response characteristic had decided frequency range which surveys, must in permit in the frequency range maintains not distorted. In fact sensor’s response always has – retards surely, the hope delay time is shorter is better.
Sensor’s frequency response is higher, the observable signaling frequency scope is wider.
In the dynamic measurement, should act according to the signal (stochastically the rectangle loudspeaker characteristic stable state, transient state, and so on) the response characteristic, in order to avoid has the oversized error.
4th, linearity range
Sensor’s linear scope refers to the scope which the output and the input are proportional. By theoretically says, within this scope, the sensitivity maintains a definite value. Sensor’s linearity range is wider, then its measuring range is bigger, and can guarantee certain measuring accuracy. When chooses the sensor, when sensor’s type determined that later must first look whether its measuring range does satisfy requests.
But in fact, any sensor cannot guarantee that the absolute linearity, its linearity is also relative. When requests the measuring accuracy is quite low, in certain scope, may the non-linear erroneous small sensor approximately regard as linearly, this will bring enormous convenient to the survey.
5th, stability
After the sensor uses period of time, its performance round loudspeaker maintains the invariable ability is called the stability. Affects the sensor long-term stability factor besides the sensor itself structure, is mainly sensor’s use environment. Therefore, must enable the sensor to have the good stability, the sensor must have the strong environment adaptiveness.
Before choosing the sensor, deals with its use environment to carry on the investigation, and according to the concrete use environment choice appropriate sensor, or takes the suitable measure, reduces the environment the influence.
Sensor’s stability has the quota target, after surpassing the lifetime, should carry on the demarcation before the use, by determined whether sensor’s performance does change.
In certain requests the sensor to be able the long-term use, but also cannot replace or the demarcation situation easily, selects the sensor stability request is stricter, must be able to undergo the long time the test.
6th, precision
The precision is a sensor’s important performance index, it is relates the entire measurement system measuring accuracy an important link. Sensor’s precision is higher, its price is more expensive, car receivers therefore, sensor’s precision, so long as satisfies the entire measurement system’s accuracy requirement to be possible, does not need to elect excessively high. Like this may in satisfy the identical survey goal in many sensors to choose quite cheap and simple sensor Arter the Russ air compressor fitting.
If the survey goal is the qualitative analysis, selects the repeat accuracy high sensor then, is not suitable selects the absolute magnitude precision high; If for the quantitative analysis, must obtain the precise observed value, must select the precision class to be able to satisfy the request the sensor.
To certain special use situation, is unable to elect to the appropriate sensor, then must independently design the manufacture sensor. The self-made sensor’s mini receiver performance should satisfy the operation requirements.
1st, determines sensor’s type according to the survey object and the survey environment
Must carry on – the concrete surveying work, must first consider that uses what kind of principle the sensor, after this needs to analyze various factor, can determine. Because, even if is the survey identical physical quantity, also has many kinds of principle sensors to be possible to supply to select, which one kind of principle’s sensor is more appropriate, below then needs according to survey the characteristic and sensor’s exploitation conditions consider some concrete questions: Measuring range size; Is measured the position to the sensor volume request; The measurement mode for the contact type is also the non-contact type; The signal draws out the method, wired or is the non-contact survey; Sensor’s origin, the domestic product imports, whether does the price withstand, independently develops.
After considering the above question can determine that selects what type SMD Transducer the sensor, then considers sensor’s concrete performance index again.
2nd, sensitivity choice
Usually, in sensor’s linearity range, hoped that sensor’s sensitivity is higher is better. Because only then the sensitivity is high time, with is surveyed the change correspondence the output signal value to be only then quite big, is advantageous to the signal processing. But must pay attention, sensor’s sensitivity is high, with is surveyed the ambient noise which has nothing to do with also to mix in easily, also will be enlarged by the amplifying system, affects the measuring accuracy. Therefore, requests the sensor itself to have the high signal-to-noise ratio, reduces as far as possible from the outside introduction unwanted signal.
Sensor’s sensitivity has the directivity. Mechanical Buzzer When by the survey is the unidirectional quantity, moreover is high to its directive request, should choose the other direction sensitivity small sensor; If by the survey is the multi-dimensional vector, then requests sensor’s overlapping sensitivity to be smaller is better.
3rd, frequency-response characteristic
Sensor’s frequency-response characteristic had decided frequency range which surveys, must in permit in the frequency range maintains not distorted. In fact sensor’s response always has – retards surely, the hope delay time is shorter is better.
Sensor’s frequency response is higher, the observable signaling frequency scope is wider.
In the dynamic measurement, should act according to the signal (stochastically the rectangle loudspeaker characteristic stable state, transient state, and so on) the response characteristic, in order to avoid has the oversized error.
4th, linearity range
Sensor’s linear scope refers to the scope which the output and the input are proportional. By theoretically says, within this scope, the sensitivity maintains a definite value. Sensor’s linearity range is wider, then its measuring range is bigger, and can guarantee certain measuring accuracy. When chooses the sensor, when sensor’s type determined that later must first look whether its measuring range does satisfy requests.
But in fact, any sensor cannot guarantee that the absolute linearity, its linearity is also relative. When requests the measuring accuracy is quite low, in certain scope, may the non-linear erroneous small sensor approximately regard as linearly, this will bring enormous convenient to the survey.
5th, stability
After the sensor uses period of time, its performance round loudspeaker maintains the invariable ability is called the stability. Affects the sensor long-term stability factor besides the sensor itself structure, is mainly sensor’s use environment. Therefore, must enable the sensor to have the good stability, the sensor must have the strong environment adaptiveness.
Before choosing the sensor, deals with its use environment to carry on the investigation, and according to the concrete use environment choice appropriate sensor, or takes the suitable measure, reduces the environment the influence.
Sensor’s stability has the quota target, after surpassing the lifetime, should carry on the demarcation before the use, by determined whether sensor’s performance does change.
In certain requests the sensor to be able the long-term use, but also cannot replace or the demarcation situation easily, selects the sensor stability request is stricter, must be able to undergo the long time the test.
6th, precision
The precision is a sensor’s important performance index, it is relates the entire measurement system measuring accuracy an important link. Sensor’s precision is higher, its price is more expensive, car receivers therefore, sensor’s precision, so long as satisfies the entire measurement system’s accuracy requirement to be possible, does not need to elect excessively high. Like this may in satisfy the identical survey goal in many sensors to choose quite cheap and simple sensor Arter the Russ air compressor fitting.
If the survey goal is the qualitative analysis, selects the repeat accuracy high sensor then, is not suitable selects the absolute magnitude precision high; If for the quantitative analysis, must obtain the precise observed value, must select the precision class to be able to satisfy the request the sensor.
To certain special use situation, is unable to elect to the appropriate sensor, then must independently design the manufacture sensor. The self-made sensor’s mini receiver performance should satisfy the operation requirements.
Vacuum degree sensor
This article from the definition, the characteristic use and affects three aspects to carry on to the vacuum degree sensor introduced that hoped External Drive Piezo Buzzer can give your study and the work brings the help!
1st, vacuum degree sensor definition
The vacuum degree sensor, uses the advanced silicon micro machine-finishing technology production, integrates the silicon resistance strength sensitive part the absolute pressure transmitting instrument which makes as sensor’s core part, because uses the vacuum reference pressure cavity which the silicon – silicon direct linkage or the silicon – Pyrex static electricity linkage forms, and a series of unstressing seal technology and precise temperature compensation technology, thus has the stability finely, the precision high prominent merit, is suitable in each kind of situation the absolute pressure survey and the control.
2nd, vacuum degree sensor characteristic and use
Uses the lower range chip vacuum to press the seal certainly, the product has Self Drive Piezo Buzzer the high overload capacity. The chip uses the vacuum charge silicone oil isolation, the stainless steel thin film transition transmission pressure, has the fine medium compatibility, is suitable in the overwhelming majority which does not corrode to the 316L stainless steel is mad the liquid medium vacuum pressure the survey. The vacuum degree sensor applies in each industry environment rough vacuum survey and the control.
3rd, vacuum degree sensor’s External Drive Magnetic Transducer function
The vacuum degree sensor role basic is measured in the cylinder must burn air scale, if the damper or idling regime valve’s opening, plays the cylinder some cylinder work in the air admission time in the cylinder is in reverse proportion the difference with cylinder’s outside air, thus causes this its value to enter the combustion, the vacuum degree sensor is transmits this data as the electrical signal for the engine computer, causes the computer to act according to this data, how much oils should some time some quarter spurt, the tire valve must start in a big way, how long could open, before wanting, to open? And so on.
1st, vacuum degree sensor definition
The vacuum degree sensor, uses the advanced silicon micro machine-finishing technology production, integrates the silicon resistance strength sensitive part the absolute pressure transmitting instrument which makes as sensor’s core part, because uses the vacuum reference pressure cavity which the silicon – silicon direct linkage or the silicon – Pyrex static electricity linkage forms, and a series of unstressing seal technology and precise temperature compensation technology, thus has the stability finely, the precision high prominent merit, is suitable in each kind of situation the absolute pressure survey and the control.
2nd, vacuum degree sensor characteristic and use
Uses the lower range chip vacuum to press the seal certainly, the product has Self Drive Piezo Buzzer the high overload capacity. The chip uses the vacuum charge silicone oil isolation, the stainless steel thin film transition transmission pressure, has the fine medium compatibility, is suitable in the overwhelming majority which does not corrode to the 316L stainless steel is mad the liquid medium vacuum pressure the survey. The vacuum degree sensor applies in each industry environment rough vacuum survey and the control.
3rd, vacuum degree sensor’s External Drive Magnetic Transducer function
The vacuum degree sensor role basic is measured in the cylinder must burn air scale, if the damper or idling regime valve’s opening, plays the cylinder some cylinder work in the air admission time in the cylinder is in reverse proportion the difference with cylinder’s outside air, thus causes this its value to enter the combustion, the vacuum degree sensor is transmits this data as the electrical signal for the engine computer, causes the computer to act according to this data, how much oils should some time some quarter spurt, the tire valve must start in a big way, how long could open, before wanting, to open? And so on.
sensor
Sensor (English name: transducer/sensor) is one kind of detector set, can Piezo Buzzer feel the information which surveys, and can examine the information which feels, transforms into the electrical signal according to certain rule or other needs the form the information output, satisfies requests and so on information transmission, processing, memory, demonstration, record and control. It is realizes the automatic detection and the automatic control most important link. The people for from the outside gain information, must draw support the sense organ.
The sensor compiles the picture selection (6), but depends on the people own sense organ only, their function by far was insufficient in the research natural phenomenon and the rule as well as the production activity. In order to adapt this kind of situation, needs the sensor. Therefore may say that the sensor is the human five senses extension, also calls it the electricity five senses.
The new technological revolution’s arrival, the world starts to enter the information age. In using in the information process, must first solve is must gain the accurate reliable information, but the sensor is gains in the nature and the realm of Magnetic Transducer production the information main way and the method.
In the modern industry production automation production process, must use each kind of sensor in particular to monitor and in control production process each parameter, causes the equipment work in the normal state or the optimum condition, and enables the product to achieve the best quality. Therefore may say that did not have the numerous fine sensors, the modernized production also to lose the foundation.
In the basic subject research, the sensor has the prominent status. The modern science technology’s development, entered many new domains: For example must observe over a thousand light years macroscopically the boundless universes, microscopically must observe slightly to the fm granule world, on longitudinal must observe is hundreds of thousands of year heavenly body evolution, short to s instantaneous response. In addition, but also appeared to deepened the material to know that to develop the new energy, the new material and so on has the influential role each kind of violent engineering research, like superhigh temperature, ultralow temperature,Loudspeaker ultrahigh voltage, ultrahigh vacuum, megagauss field, ultra weak magnetic field and so on. Obviously, must gain the information which the massive human sense organ is unable to gain directly, has not adapted the sensor is impossible. Many basic science research’s barrier, first lies in the object information the gain existence difficulty, but some new mechanisms and the high sensitivity examination sensor’s appearance, will often cause in this domain the breakthrough. Some sensor’s development, often is some edge discipline development pioneer.
The sensor already seeps to such as the industrial production, the universe development, the sea survey, the environmental protection, the resources investigation, the medicine diagnosis, the bio-engineering, even the cultural relics preservation and so on pan-domain extremely. May not exaggerate said that from boundless outer space, to vast sea, down to each kind of Micro Speaker complex engineering system, each modernized project, cannot leave various sensors nearly.
Thus it can be seen, the sensor technology in the develop economy, the impetus social progress aspect influential role, is very obvious. Various countries very take this domain the development. The trust near future, the sensor technology will present a leap, will achieve with its important position symmetric new level.
The sensor compiles the picture selection (6), but depends on the people own sense organ only, their function by far was insufficient in the research natural phenomenon and the rule as well as the production activity. In order to adapt this kind of situation, needs the sensor. Therefore may say that the sensor is the human five senses extension, also calls it the electricity five senses.
The new technological revolution’s arrival, the world starts to enter the information age. In using in the information process, must first solve is must gain the accurate reliable information, but the sensor is gains in the nature and the realm of Magnetic Transducer production the information main way and the method.
In the modern industry production automation production process, must use each kind of sensor in particular to monitor and in control production process each parameter, causes the equipment work in the normal state or the optimum condition, and enables the product to achieve the best quality. Therefore may say that did not have the numerous fine sensors, the modernized production also to lose the foundation.
In the basic subject research, the sensor has the prominent status. The modern science technology’s development, entered many new domains: For example must observe over a thousand light years macroscopically the boundless universes, microscopically must observe slightly to the fm granule world, on longitudinal must observe is hundreds of thousands of year heavenly body evolution, short to s instantaneous response. In addition, but also appeared to deepened the material to know that to develop the new energy, the new material and so on has the influential role each kind of violent engineering research, like superhigh temperature, ultralow temperature,Loudspeaker ultrahigh voltage, ultrahigh vacuum, megagauss field, ultra weak magnetic field and so on. Obviously, must gain the information which the massive human sense organ is unable to gain directly, has not adapted the sensor is impossible. Many basic science research’s barrier, first lies in the object information the gain existence difficulty, but some new mechanisms and the high sensitivity examination sensor’s appearance, will often cause in this domain the breakthrough. Some sensor’s development, often is some edge discipline development pioneer.
The sensor already seeps to such as the industrial production, the universe development, the sea survey, the environmental protection, the resources investigation, the medicine diagnosis, the bio-engineering, even the cultural relics preservation and so on pan-domain extremely. May not exaggerate said that from boundless outer space, to vast sea, down to each kind of Micro Speaker complex engineering system, each modernized project, cannot leave various sensors nearly.
Thus it can be seen, the sensor technology in the develop economy, the impetus social progress aspect influential role, is very obvious. Various countries very take this domain the development. The trust near future, the sensor technology will present a leap, will achieve with its important position symmetric new level.
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