T thermocouple temperature measurement principle1

T what is the principle of thermocouple temperature measurement? T thermocouple is a thermocouple, is a kind of common measuring instrument. Users in the use of T thermocouple for T also need to understand the principle of thermocouple temperature measurement, the project is to introduce T thermocouple temperature measurement principle.

T thermocouple simple structure, easy to use. Thermocouple is usually composed of two different kinds of metal wire, but is not limited by the size and the beginning of, outside has protective casing, which are very convenient. T thermocouple is a temperature sensing element, it can convert temperature signal into thermoelectric potential signal, through coordination, with electrical measuring instrument can measure the temperature being measured.

T thermocouple temperature measurement principle:

T thermocouple temperature measurement is the use of thermoelectric effect. By the two different materials of the conductor of A and B, closed loop as A and B two contacts at different temperature T and the To, can produce thermoelectric potential in the loop. This is the so-called seebeck effect. Conductor A and B is called hot electrode. One end of the higher temperature ( T > call work side ( Usually welded together) ； One end of the low temperature ( The To > call free end ( Usually under a constant temperature >. According to the thermoelectric potential function relation with temperature. Thermocouple indexing table can also be made. Indexing table is at the free end To = 00 c temperature conditions. Different thermocouples with different indexing table.

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure sensor and digital temperature sensor