RIGOL
© Copyright RIGOL Technologies, Inc. 2007. 2-13
User’s Guide for DS1000 Series
I. Using the FFT
The FFT (Fast Fourier Transform) process mathematically converts a time-domain
signal into its frequency components. FFT waveforms are useful in the following
applications:
z Measuring harmonic content and distortion in systems
z Characterizing noise in DC power supplies
z Analyzing vibration
Figure 2-17 Table2-6
Menu
Settings Comments
Operate
A+B
A- B
AxB
FFT
Add source A to source B
Subtract source B from source A
Multiply source B by source A
Fast Fourier Transform
Source
CH1
CH2
Define CH1 or CH2 as FFT
source
Window
Rectangle
Hanning
Hamming
Blackman
Select window for FFT
Display
Split
Full screen
Display FFT waveform on half
screen
Display FFT waveform on full
screen
Scale
Vrms
dBVrms
Set “Vrms ” as vertical unit
Set “dBVrms ” as vertical unit
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