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peak amplitude

   Also found in: Medical, Legal, Wikipedia, Hutchinson 0.03 sec.
peak amplitude [′pēk ′am·plə‚tüd]
(physics)
The maximum amplitude of an alternating quantity, measured from its zero value.


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An observed x-ray peak will be described as the sum of many pseudo-Voigt profiles, each of them being characterized by four parameters, the proportion Cg of Gaussian to Lorentzian distribution, the peak position, the peak width and the peak amplitude.
Digital signal-processing techniques are required to analyze the collected spectral data to determine the pulse width, pulse repetition interval and peak amplitude.
What's more, the location in the fly's ear structure of the peak amplitude from the vibrations reveals the direction of the sound source.
 
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