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.
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.”
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