Rigol DS6104 - Page 2

RIGOL TECHNOLOGIES USA INC
877-4-RIGOL-1 How-To Guide
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FastFourierTransformswithRigolOscilloscopes
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FFT(FastFourierTransform)isaprocesswhichconvertsatime‐domain
signalintoitsfrequencydomainequivalent.Commonapplicationsforusage
ofFFTwaveformsare:
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z Measuringharmoniccontentanddistortioninsystems
z CharacterizingnoiseinDCpowersupplies
z Analyzingvibration
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Howtoobtainawaveform'sFFT?
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 InthisexampleanFFTwillbegener at edforthe1KHzsquare
waveacquiredonChannel1asseenbelow.Thissignalcanbe
duplicatedonanyRigolscopebyattachingtheprobetothesquare
wavegenerat orportonthefrontoftheinstrument.Onceyoudo
that,
pushAUTOthenyouwillseethis:
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