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amplifier
(redirected from Mechanical amplifier)

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amplifier

Electronic device that increases the strength of a signal, such as a radio signal. The ratio of output signal strength to input signal strength is called the gain of the amplifier. As well as achieving high gain, an amplifier should be free from distortion and able to operate over a range of frequencies. Practical amplifiers are usually complex circuits, although simple amplifiers can be built from single transistors or valves.



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The ear has a mechanical amplifier in it that uses electrical power to do mechanical amplification," said Richard Rabbitt, the study's principal author and a professor and chair of bioengineering at the University of Utah College of Engineering.
 
 
 
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