Hi Aaron, today I found your software and liked it from the beginning. I try to measure Piezo transducer with it and encountered a problem. I generate the signal for the piezo by a speaker, which always "pops" when the software changes to the next frequency. So my measurement is distorted by these ...

Thanks a lot! I am looking forward to your future findings! :D Nano, I just completed a version of a DLL that I feel is ready for some further testing - beyond just my PC :) I'm hoping that you and others who have requested this before might get a chance to give it a whirl before I work on packagin...

Hello Aaron, That is a very cool program for FRA. I was thinking about using your program so I would not have to buy or rent a very expensive VNA. I would be using your program with a 2 ch Picoscope and would connect the output of the signal generator to an isolation xfmr across a 20 ohm resistor t...

I tried a few things out and found that modularity is probably not going to be much of an issue. Isolating and building things like the PicoScopeFRA, ScopeSelector, and the Scope implementation classes (e.g. ps2000aImpl) into a Dll is easily achievable with minor changes. Initially I was thinking of...

I think a Dll is realistic based on the way the program is designed. It is pretty modular, but I'm sure some changes would be required since I've not been building it that way - probably a little more complicated than just repackaging. I'll try some quick-n-dirty repackaging just to see how close it...

dear hexamer, nice piece of software!!! Works flawlessly with my 2205a. :D Wanted to ask, if there is a possibility to work without the gui (i.e. via command line interface, )? I intend to do some scripted/automated measurements based on python and octave. something like: #1 define measurement para...

I am measuring 2 sin waves using channels A & B. I want to measure the Phase difference between A & B in percent if possible. What are the best ways of doing this? I need an accurate reading. I am using PicoScope 2000 series There is a math channel formula posted in various places on this board tha...

Hi Dan, Sorry for the delay in responding. I've been studying some other signal processing enhancements related to a topic mentioned earlier in the thread. I appreciate the recommendation for resolution enhancement. Provided sufficient background noise, I think it could help with small signal cases....

Hi hexamer I did look at the 5000A series and indeed it has variable resolution, up to 16 bits. Very good Picoscope. I did note this comment at the bottom of its spec table, seen in the link below:- "** Maximum effective resolution is limited on the lowest voltage ranges: ±10 mV = 8 bits • ±20 mV =...

Hi Dan, Thank you for your interest. I can't make any firm assessment of the 3206B since I don't have one to test with. It does have some specs that would seem less favorable (vs PS5000A). But in general it does not seem to have any specs that immediately disqualify it. A real challenge with SMPS is...

Hitesh,

I've made some changes based on the info you supplied. If you'd like to give it a try, I made a new binary: https://bitbucket.org/hexamer/fra4picos ... 0.5.5b.msi

Thanks,

Aaron.

Hitesh, This was helpful, but as I began to implement, it generated even more questions. First, could you please directly confirm that CurrentPowerSource cannot return PICO_USB3_0_DEVICE_NON_USB3_0_PORT. Something I hope the documentation updates will clarify ... which condition takes precedence on ...

Hitesh, In reading the PS 4000A programmers guide it seems that rather than doing the intuitive/symmetric thing and being able to return PICO_USB3_0_DEVICE_NON_USB3_0_PORT, ps4000aCurrentPowerSource only ever returns PICO_OK. Is that right? If so, I'll have to code things a little differently there....

Thank you for testing that Hitesh. When I coded flexible power for the PS3000A, I wondered what was the right value to pass to ChangePowerSource. If I recall correctly, the programmers guide only lists PICO_POWER_SUPPLY_NOT_CONNECTED and PICO_POWER_SUPPLY_CONNECTED as valid parameters for ps3000ACha...

Sorry for taking so long to get back with you. I don't know that my TPS5420 plots are necessarily any better than those from your Rohm buck converter. I think part of that may be perception due to my using less steps/decade and the plotting routines smoothing things out. But above about 200-300 kHz,...