The application principle of thermal resistance temperature sensor

by:Thermistor-Mov     2020-04-11
Temperature sensor of thermocouple cold end temperature compensation due to the thermal resistance temperature sensor material is generally more expensive ( Especially when using your metal) And temperature measuring points are far away the distance to the instrument, in order to save thermocouple materials, reduce cost, usually adopt the compensating conductor of the cold junction of the thermocouple temperature sensor ( The free end) Reaches to the relatively stable control indoor temperature and connected to the meter terminals. It must be pointed out that the effect of temperature sensor thermocouple compensation wire only extend thermal electrode, making of the cold junction of the thermocouple temperature sensor to the meter terminals on the control room, which itself does not eliminate the cold end temperature change on the influence of temperature, no compensation. Therefore, thermal resistance still need other correction method is used to compensate the cold end temperature t0 indicates influence on measuring temperature 0 ℃. Must pay attention to when using temperature sensor thermocouple compensating conductor model match, cannot be wrong polarity, compensation conductor should be connected to the thermocouple temperature sensor to the temperature should not exceed 100 ℃. Temperature sensor is the application of principle of thermal resistance temperature sensor resistance of low temperature zone * are commonly used in a temperature detector. Its main characteristic is high accuracy, stable performance. Among them is platinum thermal resistance measurement is * * * degrees higher, it is not only widely used in industrial temperature measurement, and is made into standard benchmark instrument. Dear customer: hello, our company is a strong technical force of the development of high quality, for the majority of users with high-quality products and complete solutions and the best technical services company. This enterprise uphold sincerity, with the purpose of the implementation of quality and with enterprising societe generale, with a firmer step climb the new peak unceasingly, contribute to national automation industry, welcome new and old customers to rest assured the choose and buy the desired products. We will serve you wholeheartedly!
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