Modern electret microphones use PTFE plastic, either in film or solute form, to form the electret.
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Electret ears would be pretty cool . talk ) 23 : 02, 8 August 2011 ( UTC)
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First patent on foil electret microphone by G . M . Sessler and J . E . West ( pages 1 to 3)
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Standard handset receivers functions normally when their polarity is reversed, but the electret microphone transmitter used in most modern handsets may not.
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An electret microphone is a type of condenser microphone, which eliminates the need for a power supply by using a permanently charged material.
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Electret microphones and condenser microphones employ electrostatics as the sound wave strikes the microphone's diaphragm, it moves and induces a voltage change.
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The polar molecules of the dielectric align themselves to the direction of the electrostatic field, producing a dipole electret with a permanent electrostatic'bias '.
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Cellular space charge electrets with internal bipolar charges at the voids provide a new class of electret materials, that mimic ferroelectrics, hence they are known as ferroelectrets.
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Some other sensitive designs measure the current generated by the flow of a non-corrosive ionic fluid through an electret sponge or a conductive fluid through a magnetic field.
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Can someone suggest a battery-powered circuit for amplifying the output of an electret mike to drive a headphone ( the type commonly used for portable media players )?
How to say electret in Hindi and what is the meaning of electret in Hindi? electret Hindi meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.
