Rigol DS1000Z-E Series User Manual

RIGOL Chapter 6 MATH and Measurement
6-6 DS1000Z-E User Guide
FFT
FFT (Fast Fourier Transform) is used to transform time domain signals to frequency
domain components (frequency spectrum). DS1000Z-E series oscilloscope provides
FFT operation function which enables users to observe the time domain waveform
and spectrum of the signal at the same time. FFT operation can facilitate the
following works:
 Measure harmonic components and distortion in the system
 Display the characteristics of the noise in DC power
 Analyze vibration
Press MATH  Math  Operator to select "FFT". You can set the parameters of
FFT operation.
Figure 6-1 FFT Operation
1. Operation
Press Operation to enable or disable the FFT operation function. When FFT
operation is enabled, the time domain waveform and frequency domain
waveform are displayed separately on the screen by default as shown in Figure
6-1. The FFT sample rate is equal to 100 divided by the current horizontal time
base in figure above.
2. Source Selection
Press Source to select the desired channel (CH1 or CH2).
3. Center Frequency
Press Center and use to adjust the frequency of the frequency domain
FFT Vertical
Scale
FFT Horizontal
Scale
FFT Sample
Rate
Time Domain
Waveform
Frequency Domain
Waveform

Rigol DS1000Z-E Series Specifications

General

Brand	Rigol
Model	DS1000Z-E Series
Category	Measuring Instruments
Language	English