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24 Jan 2012 18:58:46 IST

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Is this possible to produce current from sound using transdusers?

Physics

Can you pls give a detailed explanation about producing current from sound.

If possible , can you help me design a circuit for it ?

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Comments (3)

Bipin Dubey

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Joined: 23 Jan 2007

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26 Jan 2012 20:33:52 IST

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Yes it is possible to produce current from sound using a transducer .A microphone is the most common example of that microphone is a transducer that converts acoustical waves into electrical signals. A condenser microphone, operates on a capacitive design. The cartridge from the condenser microphone uses basic transduction principles and will transform the sound pressure to capacitance variations, which are then converted to an electrical voltage. This is accomplished by taking a small thin diaphragm and stretching it a small distance away from a stationary metal plate, called a “backplate.” A voltage is applied to the backplate to form a capacitor. In the presence of oscillating pressure, the diaphragm will move, which changes the gap between the diaphragm and the backplate. This produces an oscillating voltage from the capacitor, proportional to the original pressure oscillation.

gauti95

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Joined: 26 Jan 2012

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26 Jan 2012 22:03:40 IST

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cooool

Nana Dubey

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Joined: 26 Jan 2012

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26 Jan 2012 23:45:07 IST

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Dude u have asked a beautiful question ... the most common exapmle would be an 'Human Ear" not a microphone.. if u study meticulously ear is a perfect example of converting sound waves which proposgates through air particle and hit our ear drums then a our inherent transducer convertsit into an electrical signal which is then received by our brain . although its not precisely electricity but idea would be same...

just out of curiousity I want to ask y did u ask this question ? which product are u building up ... do reply if u are free:D

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