Rigol DS2000E Series, Руководство пользователя, Страница: 134 / 283

RIGOL Chapter 6 MATH and Measurements
6-4 DS2000E User’s Guide

HORIZONTAL POSITION and HORIZONTAL SCALE can also be
used to adjust the horizontal position and scale of the operation results.
FFT
FFT is used to quickly perform Fourier transform on specified signals and transform
time domain signals to frequency domain signals. The DS2000E series 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

Measure the characteristics of the noise in DC power

Analyze vibration
Press MATH

Operate to select "FFT" and set the parameters of FFT operation.
Figure 6-1 FFT Operation
1.
Select Source
Press Source to select the desired channel (CH1 or CH2).
FFT Vertical Scale FFT Horizontal Scale FFT Sample Rate Center Frequency
Frequency Domain Waveform Time Domain Waveform