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NTNUJAVA Virtual Physics Laboratory
Enjoy the fun of physics with simulations!
Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/ > Information about this web site > Request for physics Simulations > Condenser microphone
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reuven
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on: January 12, 2011, 03:05:39 am » posted from:Yehud,HaMerkaz,Israel
Can you make a simulation of a Condenser microphone, that is to show the following variables capacitors sound waves and electrical signal they give. If you can add a change in voltage and change the sound waves, it would be really perfect. Thanks Reuben.
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Fu-Kwun Hwang
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Reply #1 on: January 12, 2011, 08:47:09 pm » posted from:Taipei,T'ai-pei,Taiwan
I need more information about the so called condenser microphone.

What is the structure and/or electric curcuit and relation between variables you would like to be simulated (typical value for capitance of the capictor, frequency of the sound wave,... etc.)

I will try to create a simulation for you if I have enough information to create it.
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reuven
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Reply #2 on: January 13, 2011, 02:45:49 am » posted from:Yehud,HaMerkaz,Israel
I want to change the frequency, can be less important to change the tension, especially important for me to see the resulting output signal
I added a file from Wikipedia, and his imagery I want really.
Thank you very much.

* ScreenShot030.jpg (4.22 KB, 160x100 - viewed 446 times.)
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Fu-Kwun Hwang
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Reply #3 on: January 13, 2011, 07:59:19 am » posted from:Taipei,T\'ai-pei,Taiwan
Could you provide the URL of the wiki-page so that I can find more information?
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reuven
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Reply #4 on: January 13, 2011, 03:37:48 pm » posted from:Yehud,HaMerkaz,Israel
Look here
http://en.wikipedia.org/wiki/Microphone/
there is also information about, Electret condenser microphone, maybe you can combine them.
These values are very beautiful in German. http://de.wikipedia.org/wiki/Mikrofon.  http://de.wikipedia.org/wiki/Elektretmikrofon

A similar picture can be found at

http://commons.wikimedia.org/wiki/File:Mic-condenser.PNG
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Fu-Kwun Hwang
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Reply #5 on: January 13, 2011, 08:39:14 pm » posted from:Taipei,T'ai-pei,Taiwan
Quote
to show the following variables capacitors sound waves and electrical signal they give. If you can add a change in voltage and change the sound waves, it would be really perfect.

I tried to read the above web pages, but I can not find the information I need!
Can you provide the relations bewtween, the frequency of the sound wave, voltage, etc.?
I am not an expert in microphone, I need a model in order to create the simulation.

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reuven
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Reply #6 on: January 13, 2011, 08:57:03 pm » posted from:Yehud,HaMerkaz,Israel

Maybe there's something here
http://hyperphysics.phy-astr.gsu.edu/hbase/audio/mic.html  http://hyperphysics.phy-astr.gsu.edu/hbase/audio/mic2.html#c3
I try to connect with someone who understands microphones, maybe he will give me the model.
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