Sorry about the previous double-posting - had email problems.
There is another option that occurred to me last night, to get an equivalent inductor from an accurate reference capacitor by using an active circuit gyrator. The problem of course is that the circuit will add errors too, diminishing performance. Also, for four-port use, the circuit would have to be battery-powered, and float within the fixture, adding more parasitics.
I could experiment with such a circuit fairly easily since I use my ground-converter for nearly all measurements, so the gyrator would not have to float. All in all though, it still seems that just using a capacitor and resulting negative inductance readout is the simplest and most accurate approach.
Ed _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
