Magnetic sensor device
AssigneeNidec Sankyo Corporation
InventorsShogo MOMOSE, Tetsuo MOCHIDA
Life of this patent
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Abstract
A magnetic sensor device may include an exciting coil; a detection coil which faces the exciting coil and is structured to detect an AC magnetic field generated by the exciting coil; an object arrangement space which is provided between the detection coil and the exciting coil; and a case member which covers an entire surrounding area for the detection coil and the exciting coil except a side facing the exciting coil in a surrounding area for the detection coil and except a side facing the detection coil in a surrounding area for the exciting coil. The case member may be made of nonmagnetic conductive metal.
Claims20
A magnetic sensor device comprising:
- an exciting coil;
- a detection coil which faces the exciting coil and is structured to detect an AC magnetic field generated by the exciting coil;
- an object arrangement space which is provided between the detection coil and the exciting coil;
- and
- a case member which covers an entire surrounding area for the detection coil and the exciting coil except a side facing the exciting coil in a surrounding area for the detection coil and except a side facing the detection coil in a surrounding area for the exciting coil;
- wherein the case member is made of nonmagnetic conductive metal.
Dependencies are inferred from the claim text.