Loading ...
Loading ...
Loading ...
64 / 99
10.1 Sampling Rate
(1) Sampling and Sampling Rate
Sampling is the oscilloscope sample the input analog signal and then convert it to digital data.
Gathering the digital data to waveform record and stored in memory.
Analog Signal Sampling Points
Sampling rate refers to the time interval between two sampling points. The maximum sampling rate of
the UPO1000CS series is 1 GS/s.
The sampling rate will be affected by the timing scale and the change of storage depth. UPO1000CS
oscilloscopes sampling rate is displayed in real-time at the top of the screen in the status bar. The horizontal
SCALE knob can adjust the horizontal time base or modify the memory depth to change it.
(2) The influence of low sampling rate
① Waveform Distortion: Due to low sampling rate, the details of the waveform might be missing,
the sampling waveform might be different than the actual signal.
② Wave Mixing: When the sampling rate is 2 times lower than the actual signal frequency (Nyquist
frequency), the frequency of the reconstructed signal will be less than the actual signal frequency.
③ Waveform Leakage: Due to low sampling rate, the reconstructed waveform might not reflect the
Loading ...
Loading ...
Loading ...