In a thermocouple what are hot and cold junctions?
Written by Sophie
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The electromotive force (EMF) produced in a thermocouple circuit depends on the nature of the two conductors and the temperatures at the two junctions; these are called respectively:
Hot junction: Thermocouple junction subjected to the temperature to be measured: the Sensor junction
Cold junction: Thermocouple junction maintained at a known temperature or at 0 °C: the Reference junction.
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