Magnetic sensor with member having magnetic contour antisotropy

Details Magnetic sensor with member having magnetic contour antisotropy Magnetic sensor with member having magnetic contour antisotropy

1995-01-04

1996-04-30

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

209569, 235449, 324228, 324252, G01N 2772, G01R 3312, G07D 700, G06K 708

Patent

active

055128220

ABSTRACT:
A magnetic sensor includes a member having a magnetic contour anisotropy. A counterpart yoke is disposed above a magnet. The thickness of the counterpart yoke is equal to or slightly smaller than the resolution. The counterpart yoke has a magnetic contour anisotropy for restraining the divergence of the magnetic flux from the magnet. The resolution can be prevented from being reduced depending on the distance between a medium and a magnetic sensing element. At the same time, the magnet can be miniaturized.

REFERENCES:
patent: 4518919 (1985-05-01), Ishida
patent: 5144234 (1992-09-01), Murata

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