| 摘要 |
A torque sensor and an electric-powered power steering apparatus including the torque sensor are provided to minimize the influence of the external magnetism applied in the torque sensor by measuring amount of the external magnetism using a hall sensor. A torque sensor comprises a torque rotor comprised of the body portion, with the input shaft insertion hole, with a presser, a pressing ring; a position rotor in which the second magnetic material and 3 magnetic material by turns repeat according to the circumference of the torque rotor insertion part and which is arranged; a quantity of magnetism detection unit comprised of concentrator; a substrate which is arranged so that the first and the second Hall integrated circuit chip be positioned between the concentrator equipped to phase; an ECU computing the output of the first and the second Hall integrated circuit chip; and a housing surrounding the position rotor and quantity of magnetism detection unit and is separated from the top Housing and lower housing.
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