DETECTING APPARATUS FOR ROTATION ANGLE OF MOTOR

摘要

PURPOSE: An apparatus for detecting a rotation angle of a motor is provided to measure the rotation angle of the motor with hole sensors and to variously output the detected rotation angle. CONSTITUTION: An apparatus for detecting a rotation angle of a motor comprises a permanent magnet(4), a connection shaft(2), linear hole sensors(5,6), and an IC chip(8). One end of the connection shaft is connected to a rotary shaft of the motor and the other end thereof is connected to the permanent magnet. The linear hole sensors detect the linear components of magnetic force of the permanent magnet. The IC chip determines the rotation angle of the rotary shaft by using the linear components of the magnetic force of the permanent magnet.