Rigol DS2302A-S 2-channel oscilloscope, Digital Storage oscilloscope, DS2302A-S ユーザーズマニュアル
製品コード
DS2302A-S
RIGOL
DS2000A User’s Guide
6-4
FFT
FFT is used to quickly perform Fourier transform on specified signals and transform
time domain signals to frequency domain signals. 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
time domain signals to frequency domain signals. 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.
1. Select Source
Press Source to select the desired channel (CH1 or CH2).
2. Select Window Function
Spectral leakage can be considerably decreased when a window function is used.
DS2000A provides four kinds of FFT window functions which have different
characteristics and are applicable to measure different waveforms. You need to
select the window function according to the waveform to be measured and its
characteristics. Press Window to select the desired window function and the
default is “Rectangle”.
DS2000A provides four kinds of FFT window functions which have different
characteristics and are applicable to measure different waveforms. You need to
select the window function according to the waveform to be measured and its
characteristics. Press Window to select the desired window function and the
default is “Rectangle”.
Vertical Amplitude Horizontal Scale FFT Sample Rate Center Frequency
Frequency Domain Waveform Time Domain Waveform