I’ve seen them on a scope and they are very radical waveform, not what I’d call a ‘clean output’, but I really am comparing it to what I know of waveform.
I’m sure there is some ‘industrial’ way to measure this without a direct connection. That’s how a hall sensor works.
My mount is ‘odd’ since, it’s permanent and most of the tech people appear to use the handheld type to measure this in/out of the machine. Brings up questions about loading and so forth. I’m sure the factory has a way they test them also.
I can tell when I load it from 20% to 50%, the voltage drops as the power/ma increase. To be expected, but shows me there is some kind of ‘known’ loading taking place. I will see if I can tell if there is the same relative wattage with a volt/amp computation.
I got across 440 at a computer site once. Told me the installers didn’t ground it properly and it should have killed me. Should have sued them for future medical bills…
Bedtime for me…