How frequency meter measuring frequency?
What is the principle of frequency meter?

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How frequency meter measuring frequency? What is the principle of frequency meter?..

In electrical resonance type measuring instrument it is based on electical resonance that is the pointer remains at stable for any frequency where the inductive reactance is equal to the capacitive reactance.This reactances of inductor in moving coil is adjusted by the torque produced in it.

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How frequency meter measuring frequency? What is the principle of frequency meter?..

it measure the number of signal zero crossing or the priodic time of the signal

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