Search found 196 matches

by hexamer
Tue Nov 13, 2018 1:53 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

What is the minimum frequency you can set the sweep too? This depends on the sampling mode and scope model. For low noise mode (the default) it should be able to go as low as the scope/API will allow. If you have a specific scope in mind I could tell you what this is. For noise reject mode, it depe...
by hexamer
Fri Nov 09, 2018 2:09 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Hello, are there any differences in measuring Speed between 2204A and 2205A? Start Frequency 50Hz, stop frequency 3,3kHz, steps 50 Hz. I want to measure rc, lc-networks in at this Low frequency. I wonder if 2205A will be double-fast because of his double sample-rate? I don' t need the picoscope for...
by hexamer
Thu Nov 08, 2018 12:34 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Hello, are there any differences in measuring Speed between 2204A and 2205A? Start Frequency 50Hz, stop frequency 3,3kHz, steps 50 Hz. I want to measure rc, lc-networks in at this Low frequency. I wonder if 2205A will be double-fast because of his double sample-rate? I don' t need the picoscope for...
by hexamer
Thu Nov 08, 2018 12:22 am
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Hi Aaron, Thanks for getting back. I do indeed have 10.6.13.58 in both 32bit & 64bit (my understanding is that this application is 32bit). I'd be happy to test it out for you. Would you just branch it on bitbucket? Please let me know what works best for you. Cheers, -Justin Here is an updated versi...
by hexamer
Sat Nov 03, 2018 7:26 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Hi Aron And Martyn Thank you I mean the 3205 docent have a arbitrary waveform generator that i can control it is for sweeping filters and other stuff as far as I remember . That's the reason why I think that might be a problem Below you will find the lock while (0 < ps3000_open_unit( ); ps3000_get_...
by hexamer
Sat Nov 03, 2018 7:17 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Hi Justin, You'd be helping me just as much! If you don't mind helping me test and confirm it works, I could post a trial version. Of course it won't be a "released" version since I won't do that until the SDK is released, but I do have the updated code ready for testing. Just to be safe we should c...
by hexamer
Mon Oct 29, 2018 1:04 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

That is one of the old 3000 series models with limited signal generator functionality. Thank you for the reminder. The PS3204 is marked as incompatible, meaning the application will refuse to open it. However the PS3205 and PS3206 are marked as compatible. If I recall correctly, the way it's coded ...
by hexamer
Sun Oct 28, 2018 4:14 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Hi Aron I ticked all the boxes in the diagnostic menu here is the Log Fatal error: Failed to determine sample buffer size: 0 Fatal error: Failed to determine sample buffer size: 0 Status: 3205 S/N: YSR76/070 successfully initialized. Fatal error: Failed to determine sample buffer size: 0 Start freq...
by hexamer
Sat Oct 27, 2018 1:42 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Hi I have an 3205 scope I am getting this error massage Fatal error: Failed to determine sample buffer size: 0 Fatal error: Failed to determine sample buffer size: 0 Status: 3205 S/N: YSR76/070 successfully initialized. any idea ? Thank you in advance Best Lars Hello Lars, Thank you for trying this...
by hexamer
Mon Oct 22, 2018 12:29 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Miq wrote:
Mon Oct 22, 2018 5:27 am
Hi Hexamer,

I've played with it a little more and I think it is working pretty well with a DUT. I took some measurements of an amplifier and the plots look right. Even when I start at 20Hz. :D

Miq
Excellent!!! Thank you for testing this out!
by hexamer
Mon Oct 22, 2018 12:27 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

It doesn't look quite like I expected if I put the start at 20Hz. It looks like it is -3dB down at the start. But when I start at 1 Hz, it is only 0.05dB down at 20Hz. Is there something I'm doing wrong? In that first plot where you set the lower limit to 20 Hz, please take note that the axis was s...
by hexamer
Sun Oct 21, 2018 5:56 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Based on a workaround proposed by Hitesh in the support ticket, I've made a test version which I hope someone can test on a PS4262:

https://bitbucket.org/hexamer/fra4picos ... 20Test.msi
by hexamer
Tue Oct 09, 2018 10:27 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

I had set the parameters in the GUI to be 10x for the probes. Perhaps that isn't being picked up by the code? I tried this with both the GUI and the excel macro. But would that impact on the autoranging not happening on the output signal? Ahh, I should have looked more closely at the value. I see t...
by hexamer
Sun Oct 07, 2018 11:50 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Hi Aaron, Can I check the behaviour I'm seeing is as expected. Basically, is autoranging meant to occur during the frequency sweep? Hi Tristan, Thank you for your interest in the FRA app. Yes, it is normal for autoranging to occur throughout the frequency sweep. It is trying to find the ranges that...
by hexamer
Sat Oct 06, 2018 2:36 pm
Forum: Applications
Topic: Frequency Response Analyzer with Bode Plots
Replies: 369
Views: 157330

Re: Frequency Response Analyzer with Bode Plots

Hi Aaron, I am planning to buy PicoScope for FRA purposes. Can you tell which model does the FRA software is most reliable to? Roughly a little less than $1000 would do. I'll be using it for power converter stability measurement. Likewise, do I need sort of isolation transformer? Regards, MJ Hello ...