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Technical Article


In the electronics world, do we consider a microphone as a sensor?

Time:2019-04-01 14:23:32 Click:

Yes, you can say so.

 

In fact, there are sensors in all microphones, one of them is the moving coil transducer whose structure principle that is splicing a light metal coil in the elastic diaphragm; Due to the coil is in a field of permanent magnet, as the elastic diaphragm vibrates, the microphone will output electrical signal.

 

PS: So long as the elastic diaphragm viabrates, the metal coil will generate induction current corresponding with the changing of the magnetic flux; Apart form that, the frequency of induction current is the same as the sound signal.

 

              


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