Why the thermocouple is a transducer an rtd is not a transducer both taking heat as a input and give millivilt and ohms.



Why the thermocouple is a transducer an rtd is not a transducer both taking heat as a input and give..

Answer / Santosh Kumar Verma

A thermocouple is considered a transducer because it converts thermal energy (heat) into electrical energy by generating a voltage proportional to the temperature difference between its junctions. In contrast, an RTD (Resistance Temperature Detector) is not considered a transducer since it measures temperature directly through changes in electrical resistance. Although both devices provide electrical outputs (millivolts and ohms), only thermocouples convert one type of energy into another.

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