|MadSci Network: Engineering|
I have heard sensor and transducer used inter-changeably by many engineers. I suppose that a sensor measures a value such as pressure or temperature while a transducer converts energy from one form to another such as sound waves to electrical or sunlight to electricity. Some devices can be both such as a microphone. Some are not both such as a photo-resistor which changes resistance as a function of impinging light. No energy conversion. In any case, due to the sloppy useage of the terms, one might always take care to further explain their intentions. Sloppiness is probably the explanation for these two terms being ambiguous. Gus
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