Thermocouple material

(1) Within the temperature measurement range, the thermoelectric properties are stable, do not change with time, have sufficient physical and chemical stability, and are not easy to oxidize or corrode;

(2) The temperature coefficient of resistance is small, the conductivity is high, and the specific heat is small;

(3) The thermoelectric potential generated in the temperature measurement is large, and the relationship between the thermoelectric potential and the temperature is linear or close to linear single-valued function;

(4) The material has good reproducibility, high mechanical strength, simple manufacturing process and low price.

Types of thermocouples: assembly thermocouples, armored thermocouples, end face thermocouples, compression spring fixed thermocouples, high temperature thermocouples, platinum-rhodium thermocouples, anticorrosion thermocouples, wear-resistant thermocouples, high-voltage thermocouples, special thermocouples, Handheld thermocouples, miniature thermocouples, precious metal thermocouples, fast thermocouples, tungsten-rhenium thermocouples, single-core armored thermocouples, etc.