On 1/24/2011 6:40 PM, William Sommerwerck wrote:
Set the audio gen to about 100kHz and connect the output
across the electro under test -- then connect the scope probes
directly to the same cap (not the generator). You should see a
small voltage at 100kHz on the scope.

If one takes that literally, the scope probes /will/ be connected directly
to the generator.

Did you leave something out?



Nope, it IS connected directly to the generator.
And the capacitor across both.

You see a reduced value of signal due to the ESR of the capacitor
vs the source impedance of the signal generator.

Pretty simple.

Not direct reading, but accurate comparison.

Jeff