Magnetic sensor and torque sensor

摘要

A cylindrical rotating member (12) is provided with a magnetic element (13), which are an object that is detected, on the outer surface (12a) thereof. The magnetic element (13) is led around the rotating member (12) by one turn and is at an angle relative to the rotating direction of the rotating member (12) in an approximately linear manner. End portions (13a, 13b) of the magnetic element (13) are disposed at approximately the same position in the radial direction of the rotating member (12). Magnetoresistive elements (21, 22) are arranged in a direction perpendicular to the rotating direction of the magnetic element (13) (in other words, axial direction of the rotating member (12)) with a gap therebetween and oppose the magnetic element (13).