6.7 Collecting Data
6-75
6
How to Operate Sampling Scope
In averaging, the mean value of the data count input at Averaging is
calculated and the results are displayed on the screen. However, when 1 is
input, no averaging is performed.
The number of averaging waveforms is displayed on the screen while
executing averaging.
The waveform is captured a hundred times when the following condition
is set, and a hundred averaging waveforms are displayed.
● Accumulation Type Average
● Averaging 100 wfms
Figure 6.7-5 Example of Averaging Process
The averaging is calculated using the following formula.
Number of waveforms ≤ Averaging setting count:
Averaging setting count ≤ Number of waveforms:
Ave(n): Averaging value
S(n): Measurement value
M: Averaging setting count
n: Number of waveforms
The size of the noise is inversely proportional to the square root of the
averaging setting count.
For example, if M is set to 100, the noise amplitude is compressed to
about 1/10 compared to when M is set to 1.
Ave
𝑛
𝑛1
𝑣𝑒
𝑛1
𝑆
𝑛
𝑛
Ave
𝑛
M1
𝑣𝑒
𝑛1
𝑆
𝑛
𝑀
Averaging 1
Averaging 100
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