why the thermocouple is a transducer an Rtd is not a
transducer both taking heat as a input and give millivilt
and ohms plz give me answer
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Answer Posted / i.ps tomer
Thermocouple is an active device which produce milli-volt output corresponding to the applied temperature whereas RTD is passive device it dose not produce any type of energy itself. The device convert one type of energy into another type of energy is called transducer. Hence themocouple is a transducer as it is converting the heat energy into electrical energy ie millivolt but rtd is not converting the heat energy into any other type of energy, it is changing the self resistance only according to heat applied
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