What is passive sensor? | Where are passive sensors used?

What is passive sensor?

What is passive sensor? | Where are passive sensors used?

What is passive sensor?
Solution:
A passive sensor is a microware instrument designed to recieve and to measure natural emissions produced by constituents of the Earth's surface and it's atmosphere.

The passive transducers are resistive, inductive and capacitive sensors. Any change in these three primary parameters can be recognized only when the element. is made 'live' by electric excitation: otherwise they are in dead state. In the absence of external power, the sensor cannot work and hence is called as passive Sensor

What is passive sensor? | Where are passive sensors used?

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