Find Geiger counter CPM
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I am trying to find the counts per minute of a geiger counter signal using Simulink.
I managed to get the signal in a digital/binary form shown below:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1569327/image.jpeg)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1569332/image.jpeg)
I want to figure out how many pulses there are in a given timefram (1-3 seconds)
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madhan ravi
2023-12-14
编辑:madhan ravi
2023-12-14
Let A be your Interval test signal in timeseries format. Then
Pulses_1_3secs = nnz(out.A.Data((out.A.Time >= 1) & (out.A.Time <= 3))
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madhan ravi
2023-12-15
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1569682/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/1569687/image.png)
The block under sum block in the second pic is *Unit Delay* block.
The first PWM block *Run at fixed interval* is ticked as model runs at fixed sample time.
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