Circuit for measuring low capacitances

Details Circuit for measuring low capacitances Circuit for measuring low capacitances

1979-12-04

1981-10-13

Karlsen, Ernest F.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324 60C, 324 61R, 324120, 34087037, G01R 2726, G01R 1926

Patent

active

042950910

ABSTRACT:
A capacitance to be measured is connected between the input and output of an inverting amplifier. A bistable circuit has an input connected to the output of the inverting amplifier and an output impedance inversely proportional to the capacitance to be measured. A resistive feedback is connected from the output of the bistable circuit to the input of the inverting amplifier.

REFERENCES:
patent: 3716782 (1973-02-01), Henry

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