Alternating current sensor employing parallel plates and having

Details Alternating current sensor employing parallel plates and having Alternating current sensor employing parallel plates and having

1994-11-21

1997-06-24

Nguyen, Vinh P.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

324117R, G01R 3300, G01R 120

Patent

active

056420412

ABSTRACT:
An alternating current sensor includes a first conductor plate, a second conductor plate positioned in spaced relationship relative to the first conductor plate and facing the first conductor plate, and a third conductor plate for electrically interconnecting the first and second conductor plates to form a connected conductive path along the first and second conductor plates. The first and second conductor plates are shaped to form respective magnetic field constituents around each of the first and second conductor plates during current flow along the conductive path. A sensor, made up of one or more air-core coils, is provided for sensing changes in magnetic flux within a predetermined region, such as in a passage between the first and second conductor plates and/or near respective outer surfaces of the first and second conductor plates.

REFERENCES:
patent: 4182982 (1980-01-01), Wolf et al.
patent: 4492919 (1985-01-01), Milkovic
patent: 4580095 (1986-04-01), DeVries
patent: 4894610 (1990-01-01), Friedl
patent: 5066904 (1991-11-01), Bullock
patent: 5107204 (1992-04-01), Bullock et al.
"Split-Conductor Current Sensors with Electronic Load Termination", Miran Milkovic, IEEE Transactions on Instrumentation and Measurement, vol. 41, No. 4, Aug. 1992, pp. 540-547.
"Electrical Measurements" by Frank A. Laws, Massachuseets Institute of Technology, 1938, pp. 72-75.

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