Search found 25 matches

by _Wim_
Mon Feb 11, 2019 8:16 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 449
Views: 187048

Re: Frequency Response Analyzer with Bode Plots

Thanks for uploading the file here also. For me, the file limit was/is limited to 256K?! Could this be related to the number of post? Just tried again to upload a dummy file of 5mB, could not attach it..
by _Wim_
Sun Feb 10, 2019 12:13 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 449
Views: 187048

Re: Frequency Response Analyzer with Bode Plots

(copied from my post at EEVBlog) I have been a big fan of using the app FRA4Picoscope to generate bode plots. This for me makes the Pico products much more useful. By using a reference resistor in series with a DUT, it is possible to calculate the impedance from the DUT. For this a made a small tool...
by _Wim_
Fri Oct 05, 2018 7:00 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 449
Views: 187048

Re: Frequency Response Analyzer with Bode Plots

Miq wrote:
Fri Oct 05, 2018 3:54 pm
Thanks again for not getting discouraged supporting this ever changing platform.
Totally agree! This tool was one of the main reasons I choose the Pico 5000 in the first place. I hope the team at Pico appreciates how much additional value this piece of software brings.
by _Wim_
Fri Jul 20, 2018 7:19 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 449
Views: 187048

Re: Frequency Response Analyzer with Bode Plots

HCan you please tell me why Fourier math is required to do this? Thanks again / Charles I am not sure if I understand your question, but if you want to measure the amplitude of a specific frequency only, I think fourier or simular mathematical function is necesarry. Oted herwise the measured amplit...
by _Wim_
Fri Jul 20, 2018 6:22 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 449
Views: 187048

Re: Frequency Response Analyzer with Bode Plots

Hi Barnett, I think even as a non programmer, all the information you need is quite readable in this part of the source code: https://bitbucket.org/hexamer/fra4picoscope/src/ce06453f0b0d2af5a8059766421fc47c6460369b/FRA4PicoScope/PicoScopeFRA.cpp?at=master&fileviewer=file-view-default The most intere...
by _Wim_
Thu Jul 12, 2018 12:46 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 449
Views: 187048

Re: Frequency Response Analyzer with Bode Plots

Maybe also a nice idea to implement: "impedance analyzer functionality" like on the Analog Discovery board If I understand correctly, the only difference would be to allow the user to enter the value for the used reference resistor, and to rescale your plot accordingly. You can off course calculate ...
by _Wim_
Thu Mar 01, 2018 7:16 pm
Forum: PicoScope 6 for Windows
Topic: Serial decoding MODBUS RTU Frame start/end time
Replies: 10
Views: 4139

Re: Serial decoding MODBUS RTU Frame start/end time

Hi Gerry, Thanks for your reply. I was indeed using the advanced triggering, but was just wondering if I missed how to setup a specialized trigger. I must say I was really glad to find out the Pico 6 beta software supported modbus, because all other scopes we had at hand did not do that (so a specia...
by _Wim_
Wed Feb 28, 2018 7:30 pm
Forum: PicoScope 6 for Windows
Topic: Serial decoding MODBUS RTU Frame start/end time
Replies: 10
Views: 4139

Re: Serial decoding MODBUS RTU Frame start/end time

Today I was also using the picoscope at work for modbus. I was confused that I always got an "invalid start". In the end the reason was that I was "zoomed in" too much on the frame, so there was no gap of 3.5 characters in front of the frame/trigger. I think in this case it should not say "invalid" ...
by _Wim_
Sun Nov 12, 2017 11:37 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 449
Views: 187048

Re: Frequency Response Analyzer with Bode Plots

Just wanted to express my thanks for providing this app. I makes my 5442B so much more useful! I was a bit surprised this was not included in the picoscope software. Before I purchased my picoscope, I had seen screenshots of your app, but did not realize that this was not a screenshot of an external...