Current measuring method and apparatus therefor

Details Current measuring method and apparatus therefor Current measuring method and apparatus therefor

G - Physics

01

R

324/66

G01R 19/00 (2006.01) G01R 15/18 (2006.01)

Patent

CA 2027818

ABSTRACT OF THE DISCLOSURE A current measuring method in which a voltage induced by a current to be measured is superimposed on an AC voltage applied to excite a magnetic sensor at all times and only the superimposed voltage component is measured and indicated through a detector and amplifier. Simultaneously, the amplifier output is applied to the input side of the AC voltage or a second coil disposed in the magnetic sensor so as to establish a magnetic equilibrium. Current measuring apparatus according to this invention include two types of apparatus composed of hardware to which the above-mentioned current measuring method is applied.

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