CableSense and probe compensation

[paulmw]

Can the CableSense™ Technology be utilized to detect if a probe compensation needs to be performed?

[Henrik_Volkers]

quick guess: NO

Would be hard for 1M Ohm Probes, that system is designed for 50 Ohm termination...  and the passive 10x Probe for 50 Ohm I own, don't have/need adjustable compensation.

And I assume the impedance change for a correct compensation is to small for this system, even if you ground the tip to get any current into the tip trim cap 😉

[paulmw]

Thanks Henrik, I was suspecting that much.  Trying to specify a test setup and looking for probe options.  Stumbled across this feature and thought it might be useful.

Can I get your thoughts on a good probe supplier?

The NI list online seems pretty minimal and the probes that I do find elsewhere are all tailored to the scopes manufacture (i.e. Keysight, Tektronix's etc.)  This probe is going to get buried in a test system and I'd prefer to not have to do a manual compensation and I also worry about other probe features (switchable gain settings) that I can't easily verify programmatically.

In case interested, probing an approximately 500kHz signal with max peak at <= 150V (max rms <= 100 Vrms) with 150W output capability. 

[Henrik_Volkers]

Serious engineering with switched power? ... I would look for a fully differential HV probe .. . my first look would be in the  Tektronix/Fluke direction . but I don't know the actual market...

(shurely some hints can be found in the eev-blog forum)

[paulmw]

EEVblog forum - Never been there.  Looks interesting, I'll check it out.  Thanks for the tip.

I am going with a high voltage diff probe.  I found both a Tektronix or Keysight that look good.  There is a Tektronix version in that series has a BNC output too that would work with an NI scope.