Patent ID: 9702733
Date: 2017-07-11
CPC Classifications: G01D,H02K

Claim:
1. A rotation angle sensor which detects a rotation angle of a shaft of a motor or a shaft of a machine which is driven by a motor, said rotation angle sensor comprising: a rotary body which rotates attached to said shaft and is provided with a detected part at its outer circumferential part; a detection element which is set on a line which perpendicularly intersects an axial line of said shaft and faces said detected part; and a pedestal which is provided at its center part with an opening part through which said shaft is inserted and which attaches said detection element, wherein said pedestal is formed as a pedestal which is provided with a recessed part to which said detection element is attached, around said recessed part, an abutting surface which abuts against an end face of said detection element at a far side from said shaft is formed, and said abutting surface is formed so that a distance from an axial line of said shaft changes along a peripheral direction of said pedestal.