Eliminate the periodic noise from the signals.

[mustice]

Hi,

I tested different frequencies down to 500 Hz, but the result is the same. Just the noise frequency changes depending on the capture rate. 

You are right but it does not affect the result. Again I also tried to used direct voltage, the result is the same.

🤔

[johntrich1971]

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@mustice wrote:

Hi,

I tested different frequencies down to 500 Hz, but the result is the same. Just the noise frequency changes depending on the capture rate. 

You are right but it does not affect the result. Again I also tried to used direct voltage, the result is the same.

🤔

---

Can you please elaborate/share your updated code? Who is right? What are they right about? What do you mean you tried to use direct voltage? How does the frequency change with capture rate? 

[mustice]

Hi,

I solved the issue. Actually there is no noise like external field or other external effects. These peaks are not noise, they are just clock pulses for acquisition.

Thx all

[johntrich1971]

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@mustice wrote:

Hi,

I solved the issue. Actually there is no noise like external field or other external effects. These peaks are not noise, they are just clock pulses for acquisition.

Thx all

---

Please explain further. You should not be seeing "clock pulses" in your data. 

[mustice]

Of course, the given image from the oscilloscope is just before collecting data by bnc2090. In my data there no pulses already. Before I was suspecting that my data includes these high-frequency noises .