| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic sensor that suppresses a variance of detection accuracy. SOLUTION: The magnetic sensor device includes a magnetic sensor 100 and an object 200 to be detected that can be relatively moved, and a magnet sheet 1 that is attached to the object 200 to be detected such that it is opposite to the magnetic sensor 100. The magnet sheet 1 includes a support 20 made of a non-magnetic material and a hard magnetic layer 10 that is formed on the support 20, made of a resin containing magnetic powder, and magnetized with different polarity. The hard magnetic layer 10 is located on the side of the object 200 to be detected, and the support 20 is located on the side of the magnetic sensor 100. COPYRIGHT: (C)2011,JPO&INPIT |
