| 摘要 |
<p>Provided is an angle sensor using a magnetoresistance effect element, for increasing the angle detection accuracy. The angle sensor comprises a magnet (2) attached to a body of revolution which is rotatable, which is rotatable together with the body of revolution, an annular yoke (3) annularly extending in such a manner as to surround the outer peripheral surface of the magnet (2) around the rotation axis, being provided with a notch portion (11) in part of itself in an extending direction thereof, and a GMR element (4) provided in the notch portion (11), for detecting the direction of a magnetic field generated inside the notch portion (11), to thereby make the rotation angle of the magnet (2) coincident with the direction of the magnetic field affecting the GMR element (4).</p> |
