Capacitively coupled RF voltage probe having optimized flux link

Details Capacitively coupled RF voltage probe having optimized flux link Capacitively coupled RF voltage probe having optimized flux link

1996-10-31

1999-02-02

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With waveguide or long line

324658, 324686, 324690, 324126, G01R 2726

Patent

active

058670203

ABSTRACT:
An RF sensor having a novel current sensing probe and a voltage sensing probe to measure voltage and current. The current sensor is disposed in a transmission line to link all of the flux generated by the flowing current in order to obtain an accurate measurement. The voltage sensor is a flat plate which operates as a capacitive plate to sense voltage on a center conductor of the transmission line, in which the measured voltage is obtained across a resistance leg of a R-C differentiator circuit formed by the characteristic impedance of a connecting transmission line and a capacitance of the plate, which is positioned proximal to the center conductor.

REFERENCES:
patent: 3798541 (1974-03-01), Campbell, Jr. et al.
patent: 4476447 (1984-10-01), Lauchner
patent: 4801866 (1989-01-01), Wixley
patent: 5325019 (1994-06-01), Miller et al.
patent: 5467013 (1995-11-01), Williams et al.
patent: 5472561 (1995-12-01), Williams et al.
"A Handbook Series on Electromagnetic Interference and Compatibility, vol. 3;" Donald R.J. White; Don White Consultants, Inc.; 1973, 1981; primarily pp. 9.26-9.27.

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