Magnetic material detecting device

Details Magnetic material detecting device Magnetic material detecting device

2007-01-30

2007-01-30

Hirshfeld, Andrew H. (Department: 2858)

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

C324S239000

Reexamination Certificate

active

11226286

ABSTRACT:
A magnetic material detecting device which detects a magnetic material by applying a magnetic field to the magnetic material and detecting a magnetic field generated from the magnetic material by the applied magnetic field, and which includes a magnetizing coil which emits a magnetic field that excites the magnetic material, and a dummy coil which generates a magnetic field that excites the magnetic material by electromagnetic induction caused by the magnetic field emitted from the magnetizing coil, in which the dummy coil is disposed at a position where the electromagnetic induction is generated.

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patent: A 2001-160117 (2001-06-01), None

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