| 摘要 |
PURPOSE:To accurately and surely detect the rotating state of a rotary shaft. CONSTITUTION:A rotary sensor 1 is provided with a rotor 6 having N-poles and S-poles magnetized in turn in the peripheral direction and a magnetic sensor 5 arranged to face the rotor 6 and detecting the magnetism from the rotor 6, magnetization regions of the rotor 6 are set to have different intensity of magnetization respectively, for example, and the magnetic sensor 5 outputs the analog signal corresponding to the detected intensity of magnetization. |
