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First picture on EEVblog of the new R&S MXO4 series oscilloscope :)

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shabaz:
I have a suggestion, I hope it is useful; maybe it could be interesting as part of K31 to have an app to perform double pulse testing.  The waveform generator has more than enough performance for this.
It would be neat if the app could automatically show the inductance, as well as turn-on time and reverse recovery, as either measurements, or in different colours or different windows. Basically, the problem this would solve is that it would become a handy app to solve inductance, saturation, diode and MOSFET measurements. It could be called a "Semiconductor Testbed" or "Semiconductor Efficiency" app (even though it would also provide inductor measurements) especially if more features were added to the app in future.
This can be done without K31 today, but would require AWG capability to construct the double pulse, and would probably end up using all the math channels depending on how much of it was desired to be automated on the display. I don't entirely have a full idea currently regarding the best way for such an app's workflow or display the results, but at first thought it seems like a useful problem to solve.

Also, as a benefit to all users (not just K31), it would be nice if the harmonics feature could trickle down to a general harmonic distortion measurement capability, along with the remote control commands for it, because there are uses beyond power analysis tasks for that, i.e. kill two birds with one stone. It would be great for quick audio analysis. Incidentally, remote control commands to access the spectrum trace would be neat too (currently it requires file transfer).

Anyway, I hope these ideas are useful.

TopQuark:
Another thing that could be really interesting for power analysis could be magnetics characterization (B-H curve).

Say you have to characterize a ferrite core, I think the gist of it would look something like: Wind two winding, primary for magnetizing the core, secondary winding for sensing.

- AWG drives primary, an amplifier is probably needed to get reasonable current into the primary to drive it into saturation.
- Measure current into primary + have user input number of pri turns and you get field strength (H), roughly.
- Measure and integrate secondary voltage + have user input number of sec turns and you get flux density (B), roughly.
- Plot in XY and you should have a BH curve.
- Stuff like saturation flux density, coercive force, remanence, hysteresis losses etc. can be calculated with maths.
- Some kind of offset/servo is probably needed to keep the secondary voltage integration in check.
- AWG allows measurement of B-H curves across different frequencies.

Something like that, idk.

Martin72:
Do we have this on our HD ?  :D
Our two "great" lecroy have it.

pdenisowski:

--- Quote from: shabaz on May 04, 2023, 03:03:01 pm ---Anyway, I hope these ideas are useful.

--- End quote ---


--- Quote from: TopQuark on May 04, 2023, 04:08:34 pm ---Another thing that could be really interesting for power analysis could be magnetics characterization (B-H curve).

--- End quote ---

Thanks for the feedback!  I'll definitely pass them on to our scope product management team.

Martin72:

--- Quote from: Martin72 on May 04, 2023, 05:25:59 pm ---Do we have this on our HD ?  :D
Our two "great" lecroy have it.

--- End quote ---

Description of the PA option :

https://teledynelecroy.com/options/productseries.aspx?mseries=441&groupid=22



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