How to compute an FRF

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albertomora1
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Joined: Wed Jul 15, 2020 5:27 pm

How to compute an FRF

Post by albertomora1 »

Hello,
I am using 3406D MSO.
Since this model has a DAC, I want to use the signal generator in order to use it as a voltage excitation of a circuit (e.g. using random noise or sine sweep), then measure it with one channel of my PicoScope, as well as measure the output voltage of the circuit under analysis with another channel of Picoscope.
Then compute the frequency response function (FRF) between the input signal and the output signal.
How can I do that?
At the moment I am exporting the time signal into matlab and then compute the FRF in MATLAB but it is very time consuming. It would be better to do it in PicoScope6 environemnt.

Unlikely the software PicoScope6 allows only to compute the spectrum of each channel, but not to compute an FRF between channels.

Thank you and best regards.
Alberto

bennog
Advanced User
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Joined: Mon Nov 26, 2012 9:16 am
Location: Netherlands

Re: How to compute an FRF

Post by bennog »

have you looked at this post

topic14311.html

Benno

albertomora1
Newbie
Posts: 0
Joined: Wed Jul 15, 2020 5:27 pm

Re: How to compute an FRF

Post by albertomora1 »

Thank you so much Benno for your suggestion. I did not found this post.
It seems very promising. I will have a look.

[edit]: wow, this tool is awesome!

Best regards,
Alberto

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