Abstract: A soft-magnetic material is installed on the opposite side of the magnetism sensing face of magnetism sensing devices. This soft-magnetic material is larger than the magnetism sensing face. Then the detection coverage per sensor is enlarged, and the number of sensors and signal processing circuits are reduced across the width of the strip.
Type:
Grant
Filed:
August 26, 2002
Date of Patent:
August 10, 2004
Assignees:
Kawasaki Steel Corporation, System Hitec, Ltd.