Quick induction coil question

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The discussion centers on how sound waves affect the electrical signals generated in microphones. In dynamic microphones, the varying current is directly related to the intensity of the acoustic wave, without any DC power involved. In contrast, condenser microphones may use a DC supply for polarization or rely on a permanent charge, but the acoustic intensity still influences the output current and voltage. Additionally, the power output ratio is influenced by the size of the electromagnetic field and the induction coil. Overall, the acoustic intensity plays a crucial role in determining the electrical response of both microphone types.
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Hi guys, quick query (at least I think it's quick!).

I know that, in a microphone, when a waveform passes through the electromagnetic field it resonates the diaphragm and in turn moves the induction coil set in the middle, creating a VARYING current...

My question is:

Is the varying current/electrical signal that is generated from the sound vibrating on the diaphragm varied depending on the sound power and/or pressure of the waveform? or limited to the DC powering the microphone itself?

ALSO...

Is the power output ratio dependent on how large the EMF field and induction coil is as well?

Thanks very much guys, I hope I'm not talking jibberish! ha ha.
 
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In a dynamic mic, the current/voltage varies with the intensity of the acoustic wave. In a dynamic type of mic, there is no dc powering the element.

In a condenser mic, there is either a dc supply used to polarize the condenser element, or no dc supply is used as there is a permanent charge on the diaphragm. Again, the acoustic intensity determines the mic element current/voltage.

Did I help at all?

Claude
 
Last edited:
Yes, you have! perfectly.

Thank you very much :)
 

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