Current sensor having at least one cancel coil

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United States of America Patent

PATENT NO 9448262
APP PUB NO 20150028857A1
SERIAL NO

14384712

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Abstract

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A current sensor according to the present invention includes a sensor element and a detector. The sensor element includes a core member, an exciting coil and a detection coil. The sensor element is configured such that, while the exciting coil is fed with an excitation signal, comprising a fundamental component, and when the signal to be detected flows, a signal, including a harmonic component, corresponding to the permeability μ of the core member at that point, being superposed on the fundamental component, is outputted from the detection coil. The detector includes a component extraction unit, a level specification unit, and an information output unit.

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Patent Owner(s)

Patent OwnerAddress
FERROTEC MATERIAL TECHNOLOGIES CORPORATION2-3-4 NIHONBASHI CHUO-KU TOKYO 1030027 ?1030027

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hachida, Takayuki Chuo-ku, JP 4 15
Hirota, Yasutake Chuo-ku, JP 5 47

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