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Inverted ECG signal solution

Hello!

 

I have been trying to acquire an accurate ECG signal using DAQ. After implementing noise removal methods like using filters, I'm getting ECG signal which has ALTERNATE CYCLES INVERTED.

 

I have attached the VI file and the screenshot of the output.

 

I will be grateful if anyone provides a solution to this problem.

 

Thank you.

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Message 1 of 5
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Hello!

 

I have been trying to acquire a real time ECG signal using DAQ. After implementing various noise removal methods like using a filter, I am getting an ECG signal having ALTERNATE INVERTED CYCLES.

 

I am attaching the VI file and the screenshot of the output. I will be grateful if anyone provides a solution to this problem.

 

Please! help!

 

Thank you.

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Message 2 of 5
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I am working on a project on aquiring ECG signals. I am getting the output with ALTERNATE INVERTED cycles. So I want to put a full wave rectifier at the output in order to get all the cycles. can you please help me with the solution how to do full wave rectification at the output?

 

 

 

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Hi Naina,

 

please keep your discussion in one place! We don't like to discuss the same problem in 3 threads in parallel…

Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
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Signal can't be right.  It's unipolar 0 to 2.5V and clipping on both ends.  Too much signal.  If you disconnect or ground the input I'd expect it to go mid-scale at 1.25V.  So reduce the gain, subtract 1.25 from the data and then run it through your filter.

Good luck,

David

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