Search found 30 matches

by _Wim_
Wed Apr 08, 2020 8:11 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

Hello! I have 3046D MSO and 4262 and Rigol DG1062Z and Siglent 6052X. I do know C++ and C# but my programmer-fu is very weak(not really actively programming in many years) , but would be willing to test and maybe fix minor things.. If I may make a suggestion: SCPI is just string exchange protocol, ...
by _Wim_
Wed Apr 08, 2020 7:55 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

I have downloaded all files to a local source tree folder, currently having a first look how to implement a dll in C# that can be called by your C++ interface. The interface definition is indeed self explanatory. Hello Aaron, Can you have a brief look at the section "C++/C# Interoperability" at the...
by _Wim_
Wed Apr 08, 2020 6:45 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

Here is the interface file: ExtSigGen.h The application does use a separate thread from the UI for carrying out the FRA activities, and another thread with tim...
by _Wim_
Fri Apr 03, 2020 6:07 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

It is indeed always a challenge working cross languages, but typically all has been done before and google always has an answer... :D Does your virtual interface already run in another thread to avoid that the application freezes while connection with the signal generator is made and also when sendi...
by _Wim_
Thu Apr 02, 2020 7:04 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

So, that said, I'd like to see if anyone else is motivated to help out. Even if you don't have time or skills to create a new plugin, perhaps you could offer experience, suggestions, or a review of the plugin interface. Depending on interest I'd probably start a new thread. I have some experience i...
by _Wim_
Thu May 02, 2019 5:38 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

What is "my impedance viewer app"? How can I download it? You can find it here: https://www.picotech.com/support/viewtopic.php?f=131&t=14311&p=141799#p141728 Source code is available here: https://github.com/WimHuyghe/FRA-Impedance-Viewer Some more details are described earlier in this thread and h...
by _Wim_
Wed May 01, 2019 6:34 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Power Measurement/Calculation using FRA

Hi all, I need to measure the consumption power for a coil and a piezo. What is the standard way of doing this using FRA? Thanks, Vahid You mean expected power consumption at each frequency? If yes, I think the easiest way is to plot the impedance curve by using a series resistance and my impedance...
by _Wim_
Fri Apr 26, 2019 6:13 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

Just a quick update with some bugfixes: - incorrect phase was shown in impedance plot (both plot and cursor) - app did not work on X64 systems (had to force 32 bit mode for the app to make it work). @Kai, I am still planning to do the calibration, just a bit tied up for the moment, so only had time ...
by _Wim_
Tue Mar 05, 2019 7:04 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

In the meantime, if your curious, another thing you can experiment with is Noise Reject mode. Since your scope has such a large sample buffer, you can select Noise Reject mode and narrow the NR bandwidth setting and significantly increase your processing gain. I think the default is 100 Hz, but you...
by _Wim_
Tue Mar 05, 2019 6:56 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

Hi Kai, First of all many thanks for the very detailed reply (twice!). Some of it I will take a bit of reading for me to fully understand, but will definitely try to understand all details. This indeed covers much more than my original question, and will try to work something out in my app using you...
by _Wim_
Mon Mar 04, 2019 8:16 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

Hi Wim, the calculation is much easier and more clearly represented, when you do it in complex math (numbers/functions) and only changing to real and imaginary parts in the end, when you want to extract resistance and reactance or conductance and susceptance or things like tan(delta) resp. loss-fac...
by _Wim_
Sun Mar 03, 2019 8:56 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

At the EEVBlog forum I posted my calculation principle how to possibly perform a calibration of the test jig (see http://www.eevblog.com/forum/testgear/rlc-impedance-viewer-for-picoscope-bode-plot-data/msg2238570/#msg2238570) with this software. If anyone who is good with math would like to review t...
by _Wim_
Sun Mar 03, 2019 7:53 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

Hi Kai, Sorry I missed the fact that it started at 40 Hz, just read 10 Hz in the text and jumped to a conclusion. On my scope (picoscope 5442B) I cannot reproduce the periodic phase ripples for a 10µF 1000 ohm combination. I do get more random noise without additional settling time. When I increase ...
by _Wim_
Thu Feb 28, 2019 9:06 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

New version:

Bugfix:
- was not possible any longer to open multiple FRA4Pico plots (was always opening new plot).

Other changes:
- cursor info always same nr of lines (so chart does not move when right mouse button is used)
- pompt on exit when unsaved files are present
by _Wim_
Thu Feb 28, 2019 8:17 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 473
Views: 201553

Re: Frequency Response Analyzer with Bode Plots

Hi, I am using a PicoScope 2204A with FRA4PicoScope V. 0.6.2b.RC4, assuming that it is the newest version. In recent weeks I have used this for impedance measurement on capacitors and inductances in the range 1 Hz to 100 kHz. The setup is apparently the same as the one posted by _Wim_ on Feb 10, 20...