An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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noise-equivalent power
  توان ِ هم‌ارز ِ نوفه  
tavân-e ham-arz-e nufé
Fr.: puissance équivalente de bruit  

A measure of the sensitivity of an electronic detector, defined as
the power input to the detector that will create a signal to noise ratio of one for an integration time of half a second.

See also: → noise; → equivalent; → power.