About: Total harmonic distortion analyzer

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A total harmonic distortion analyzer calculates the total harmonic content of a sinewave with some distortion, expressed as total harmonic distortion (THD). A typical application is to determine the THD of an amplifier by using a very-low-distortion sinewave input and examining the output. The figure measured will include noise, and any contribution from imperfect filtering out of the fundamental frequency. Harmonic-by-harmonic measurement, without wideband noise, can be measured by a more complex wave analyser.

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  • A total harmonic distortion analyzer calculates the total harmonic content of a sinewave with some distortion, expressed as total harmonic distortion (THD). A typical application is to determine the THD of an amplifier by using a very-low-distortion sinewave input and examining the output. The figure measured will include noise, and any contribution from imperfect filtering out of the fundamental frequency. Harmonic-by-harmonic measurement, without wideband noise, can be measured by a more complex wave analyser. Another application is measurement of the effectiveness of an electronic filterwith extremely narrow passband, such as a notch filter in a parametric equalizer. (en)
  • Измери́тель нелине́йных искаже́ний, ИНИ, (измеритель коэффициента ) — прибор для измерения коэффициента нелинейных искажений, КНИ (коэффициента гармоник) сигналов в радиотехнических и электронных устройствах. (ru)
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  • Измери́тель нелине́йных искаже́ний, ИНИ, (измеритель коэффициента ) — прибор для измерения коэффициента нелинейных искажений, КНИ (коэффициента гармоник) сигналов в радиотехнических и электронных устройствах. (ru)
  • A total harmonic distortion analyzer calculates the total harmonic content of a sinewave with some distortion, expressed as total harmonic distortion (THD). A typical application is to determine the THD of an amplifier by using a very-low-distortion sinewave input and examining the output. The figure measured will include noise, and any contribution from imperfect filtering out of the fundamental frequency. Harmonic-by-harmonic measurement, without wideband noise, can be measured by a more complex wave analyser. (en)
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  • Измеритель нелинейных искажений (ru)
  • Total harmonic distortion analyzer (en)
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