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Thermocouple temperature measurement of the two necessary conditions for _ the instrument

by:JVTIA     2020-10-28
Thermocouple is a kind of common measuring instruments, the scope of application is very extensive. At the time of thermocouple temperature measurement in fact, there are two conditions are necessary, for the thermocouple temperature measurement is very important. Thermocouple temperature measuring two necessary conditions for thermocouple is a temperature sensing element, is a kind of an instrument, thermocouple temperature measurement directly. Composed of two different composition material of the conductor closed loop, because material is different, different electron diffusion of electron density, stable equilibrium is produced after electric potential. When temperature gradient is at both ends, the loop will be current, produce thermoelectric emfs, the bigger the temperature difference, the greater the current will be. To know the temperature after the measured thermoelectric emfs. Thermocouple in practice is a kind of energy converter, convert heat energy into electricity. Thermocouple wide technical advantage of thermocouple temperature measurement range, stable performance compare; High measurement accuracy, thermocouple direct contact with the object being measured, not affected by the intermediate medium; Thermal response time is fast, flexible thermocouple response to temperature changes; Wide measurement range, the thermocouple 40 ℃ ~ + 1600 ℃ can be continuous temperature measurement; Thermocouple performance is stable, good mechanical strength. Long use life, device for lunch. Galvanic couple must be composed of two different nature but fit a certain request of conductor ( Or a semiconductor) Data constitute a loop. Thermocouple measurement must have a temperature difference between side and reference. The two different information conductor or semiconductor welding, a and b constitute a closed loop. When the conductor a and b two persistent point temperature difference between 1 and 2, occurs between the electromotive force, therefore constitute the size of a current in the circuit, this kind of phenomenon called the thermoelectric effect. Thermocouple is using this effect to work. Tel: 023 - 68280988, 023 - 68288698
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