国产国产人在线成免费视频

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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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            国产国产人在线成免费视频

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