Patent ID: 7051602

Claim:
A torque sensor, comprising: a first shaft; a second shaft connected coaxially with the first shaft; a torsion bar of which one end is connected to the first shaft and the other end is connected to the second shaft; a multipolar magnet fixed to the first shaft or to the one end of the torsion bar; a magnetic yoke fixed to the second shaft or to the other end of the torsion bar; a pair of flux collecting rings disposed along an outer surface of the magnetic yoke, each of the flux collecting rings having a flux collecting portion, the flux collecting portions being opposed to each other via an air gap; a magnetic sensor disposed in the air gap of the flux collecting portions; a molding member which molds the flux collecting rings; and a magnetic shield which is wound around an outer surface of the molding member so as to surround the flux collecting rings, the magnetic shield being made of a magnetic member having a belt shape.