What is a thermocouple thermometer?
thermocouple, also called thermal junction, thermoelectric thermometer, or thermel, a temperature-measuring device consisting of two wires of different metals joined at each end. One junction is placed where the temperature is to be measured, and the other is kept at a constant lower temperature.
Thermocouple thermometers are versatile and accurate industrial temperature measurement devices that use either built-in thermocouples or input from external thermocouples. A thermocouple senses temperature by using two conductors of dissimilar metals joined together at one end.
The operating principle of the thermocouple is based on the Peltier effect. The thermocouple circuit consists of two metals joined together to form two junctions of different temperatures. A Peltier emf is generated due to the difference in temperatures of the two junctions of the circuit.
