Frequency Response Analyzer with Bode Plots

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timrobbinsfromoz
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Re: Frequency Response Analyzer with Bode Plots

Post by timrobbinsfromoz »

Just wanted to say a big thanks to Aaron for developing and supporting this app. Very easy to setup and use and has me generating plots of valve amps straightaway, and dovetails well with a new 4224A. For me it allows automated plotting below 10Hz, and above 100kHz, which is where all the feedback related stability fun-and-games hides, and is difficult or impossible to do with a good soundcard. Ciao, Tim

HPC
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FRA4: Installation of newer version fails

Post by HPC »

Hello forum, I have installed version “0.7.0b RC1” on a Windows 10 PC and would like to update to “FRA4PicoScope_0.8.0_beta.msi”. I am asked to specify the path to the installation package “FRAPicoSope_0.7.0b_RC1.msi”. This package is not available on the download page. So unfortunately I fail. Can someone give me a hint? Thank you. HPC

hexamer
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Re: Frequency Response Analyzer with Bode Plots

Post by hexamer »

Hi HPC,

Sorry you're having trouble. I'm not sure why the installer needs to know the path to the older MSI, but in any case if you want to try satisfying that dependency, the archive has that MSI: https://bitbucket.org/hexamer/fra4picos ... G-2020.zip

If that doesn't work, I'd just uninstall the 0.7.0b RC1 version, then install the new one.

Thank you,

Aaron.

hexamer
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Re: Frequency Response Analyzer with Bode Plots

Post by hexamer »

timrobbinsfromoz wrote:
Wed Oct 04, 2023 6:56 am
Just wanted to say a big thanks to Aaron for developing and supporting this app. Very easy to setup and use and has me generating plots of valve amps straightaway, and dovetails well with a new 4224A. For me it allows automated plotting below 10Hz, and above 100kHz, which is where all the feedback related stability fun-and-games hides, and is difficult or impossible to do with a good soundcard. Ciao, Tim
Thank you Tim!!

HPC
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Re: Frequency Response Analyzer with Bode Plots

Post by HPC »

Hi Aaron,
I would like to add my thanks to Aaron. His software together with the ImpedanceViewer software from eevblog allows new insights into the behavior of e.g. inductors and capacitances, especially with the high resolution of PicoScope 5xxx.
(So far I have been quite happy with my PicoScope 3xxx at home. Unfortunately that is now over. The 5000s in the company are much better.)
If you, Aaron, still want to perfect your software, I would be very grateful for the calibration function.
Either way: thank you very much!
Best regards,
HPC

Eduard_Lazer
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Re: Frequency Response Analyzer with Bode Plots

Post by Eduard_Lazer »

Hello,

I have a Problem with the Data Export.
Every time I Export the Data, the CSV contains wrong frequencies.
The values are completely wrong and don't make any sense.

You can find an Example in the Attachments.
Attachments
TEST.csv
(6.58 KiB) Downloaded 216 times
Screenshot 2023-11-16 170938.png

hexamer
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Re: Frequency Response Analyzer with Bode Plots

Post by hexamer »

HPC wrote:
Mon Nov 06, 2023 7:54 am
Hi Aaron,
I would like to add my thanks to Aaron. His software together with the ImpedanceViewer software from eevblog allows new insights into the behavior of e.g. inductors and capacitances, especially with the high resolution of PicoScope 5xxx.
(So far I have been quite happy with my PicoScope 3xxx at home. Unfortunately that is now over. The 5000s in the company are much better.)
If you, Aaron, still want to perfect your software, I would be very grateful for the calibration function.
Either way: thank you very much!
Best regards,
HPC
Thank you so much for the feedback! Calibration is definitely high priority on my backlog! Conceptually simple, but as with many things, there's more than one way to do it. I might circle back with some questions.

hexamer
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Re: Frequency Response Analyzer with Bode Plots

Post by hexamer »

Eduard_Lazer wrote:
Thu Nov 16, 2023 4:09 pm
Hello,

I have a Problem with the Data Export.
Every time I Export the Data, the CSV contains wrong frequencies.
The values are completely wrong and don't make any sense.

You can find an Example in the Attachments.
Hi Eduard,

Those frequencies are log base 10 of the actual frequency. If you'd like to see the actual frequencies, you could insert a column with formula =POW(10, A2), then fill down.

Thanks,

Aaron

Gavatron
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Re: Frequency Response Analyzer with Bode Plots

Post by Gavatron »

Hi Aaron,

I have recently had an new issue with the FRA not starting. I get a couple of seconds of blue spinning wheel and but the program fails to start. Picoscope 7 still loads and works fine. I used FRA a couple of months ago without any issues. I am sorry i have not given you much to go on. I have found it to be an excellent tool for tracking stability.

hexamer
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Re: Frequency Response Analyzer with Bode Plots

Post by hexamer »

Gavatron wrote:
Tue Dec 26, 2023 4:25 am
Hi Aaron,

I have recently had an new issue with the FRA not starting. I get a couple of seconds of blue spinning wheel and but the program fails to start. Picoscope 7 still loads and works fine. I used FRA a couple of months ago without any issues. I am sorry i have not given you much to go on. I have found it to be an excellent tool for tracking stability.
Hello Gavatron. I'm happy to try to get you back up and running. Just a few questions ...
  1. What version of the FRA app do you have installed?
  2. What version of Windows?
  3. Is the 32-bit version of the Pico SDK installed on your computer? If so, what version?
  4. There are some versions of the FRA App that start, but then go to the background. Is it possible it did start and is just hidden? Minimize all other applications and see if you see either the main window, or a dialog asking if you wan to load a demo scope. Also, check the task list. Is the executable FRA4PicoScope.exe running?
Thank you,

Aaron.

Gavatron
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Re: Frequency Response Analyzer with Bode Plots

Post by Gavatron »

Hi Aaron,

Thanks for your troubleshooting list because it got me actually thinking, rather than simply reacting. I never even considered that FRA was a x86 program, not x64, so I would need to install the 32bit Picoscope SDK rather than the 64bit Picoscope SDK. So I installed the 32bit SDK, reinstalled FRA and success!!

So, it all works with version 0.7.3 and I can get on with my measurements :)

Thanks again, much appreciated.

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