Frequency compensating current circuit for a current comparator

Details Frequency compensating current circuit for a current comparator Frequency compensating current circuit for a current comparator

1983-06-16

1985-07-09

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324DIG1, G01R 1152, G01R 2726

Patent

active

045284989

ABSTRACT:
A method and apparatus for rendering a high-voltage current-comparator capacitance bridge insensitive to frequency fluctuations when used for measuring inductance. A compensating current, proportional to twice the change in the current through the reference capacitor due to frequency fluctuations, is driven into the first comparator winding through which the current from the reference capacitor passes, resulting in a current in that winding having frequency characteristics similar to those of the current passing through the second winding which is connected to the inductance. This compensating current is derived from a reduced replica of the applied high-voltage by deriving a voltage signal which is a function of the frequency fluctuation, producing an amplitude controlled reduced replica voltage using the frequency fluctuation voltage and converting the amplitude controlled voltage to the compensating current for the first comparator winding.

REFERENCES:
Foley, "Direct Reading Non-Frequency-Sensitive Current Comparator Bridges for Measurements of Capacitors & Reactors", IEEE Proceedings Southeast Con., Apr. 1979, pp. 337-340.

Affiliated with

Also associated with

Rating

Frequency compensating current circuit for a current comparator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency compensating current circuit for a current comparator , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency compensating current circuit for a current comparator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-911481