What kind of temperature measurement conditions about the thermocouple needs?

Thermocouple belongs to the thermal components, can directly measure the temperature, the closed circuit is made up by two different materials, different because the materials, so the electron density would be different, and different electron density can cause electronic diffusion, wait for after stable equilibrium production potential. When both ends of the gradient of temperature, creates an electric current in circuit and thermoelectric emfs, the greater the difference of temperature, the greater the current will, when measure the thermoelectric emfs can know temperature, thermocouple is actually a kind of converting thermal energy into electrical energy converter. Thermocouple temperature measurement range, measurement accuracy is high, performance is stable, and the analyte in the thermocouple and contact time is not affected by the intermediate medium, the thermal response time soon, to respond to changes in temperature is very flexible, from - 40 ~ + 1600 ℃ can be continuous testing temperature, the device is simple and good intensity, long service life. ( Figure/http://www. wuxiyibiao。 com )