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.