Fft Operation - Teledyne T3DSO1000A Series User Manual

FFT Opera�on
FFT is used to compute the fast Fourier transform using analog input channels. FFT takes
the digitized time record of the specified source and transforms it to the frequency domain.
When the FFT function is selected, the FFT spectrum is plotted on the oscilloscope
display as magnitude in dBV versus frequency. The readout for the horizontal axis
changes from time to frequency (Hertz) and the vertical readout changes from volts to dB.
Typically FFT operation can be used for the following:
◆ Measure harmonic components and distortion in the device under test
◆ Measure the characteristics of the noise in DC power
◆ Analyze vibration
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