X84; Sampling Rate Setting Guideline - Hioki Memory HiCorder MR6000 Instruction Manual

Sampling rate setting guideline
Select a sampling rate using the following table as a guideline.
Maximum display
frequency
8 MHz
4 MHz
2 MHz
800 kHz
400 kHz
200 kHz
80 kHz
40 kHz
20 kHz
8 kHz
4 kHz
2 kHz
800 Hz
If the instrument plots non-existent waveforms (aliasing)
If a measured signal oscillates at a higher frequency compared to the specified sampling rate, the
instrument may plot non-existent waveforms oscillating at a lower frequency than that of the actual
signal when the signal frequency reaches a certain level. This phenomenon is called aliasing.
Sampling interval
To plot a sign wave that allows you to observe the peaks of the sine wave on the LCD without any
aliasing, the instrument needs to sample the waveform at a minimum of 25 points per cycle.
To set the sampling rate automatically
Refer to "3.7 Measurement With the Auto-range setting" in Quick Start Manual.
Maximum display
Sampling rate
frequency
200 MS/s 400 Hz
100 MS/s 200 Hz
50 MS/s 80 Hz
20 MS/s 40 Hz
10 MS/s 20 Hz
5 MS/s 8 Hz
2 MS/s 4 Hz
1 MS/s 2 Hz
500 kS/s 0.8 Hz
200 kS/s 0.4 Hz
100 kS/s 0.2 Hz
50 kS/s 0.08 Hz
20 kS/s 0.04 Hz
Actual input signal
: Sampled points
Observed waveform
Configuring Measurement Conditions
Sampling rate
10 kS/s
5 kS/s
2 kS/s
1 kS/s
500 S/s
200 S/s
100 S/s
50 S/s
20 S/s
10 S/s
5 S/s
2 S/s
1 S/s
A sampling interval longer than the cycle
of the input signal causes aliasing.
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