Patent ID: 8952680
Filing Date: 2015-02-10
Classification: G01R

Abstract:
1. A magnetic sensor, comprising: a pair of sensors that include substantially arc-shaped magnetic cores comprising lamination of a plurality of magnetic plates which are provided with meshing portions at front end portions and base end portions thereof, the sensors being configured to be rotatable about pivots at base end portion sides thereof, wherein when the meshing portions are meshed together to construct a ring-shaped body, the magnetic sensor detects magnetism of a detected body surrounded by the ring-shaped body, the meshing portions include main meshing portions, having entire meshing regions that overlap one another in a completely meshed state, where respective meshing portions overlap one another completely, wherein auxiliary meshing portions protrude at least one of inside and outside the ring-shaped body and are provided on the main meshing portions of at least one of the meshing portions provided on the front end portions and the base end portions, and in the completely meshed state, the auxiliary meshing portions are configured such that entire meshing regions of the auxiliary meshing portions do not overlap the main meshing portions of the other magnetic plates being meshed and the meshing regions of the auxiliary meshing portions of the other magnetic plates, and in a non-completely meshed state, the meshing portions mesh together without at least a portion of the meshing regions of the main meshing portions overlapping, and at least a portion of the meshing regions of the auxiliary meshing portions overlap meshing regions of one of the main meshing portions of the other magnetic plates and the auxiliary meshing portions of the other magnetic plates.