| 摘要 |
PROBLEM TO BE SOLVED: To attain a device for detecting a rotational angle of a rotary part, in which detection of the rotational angle is simplified and made into low cost with fewer mechanical parts.SOLUTION: First disks (32, 32') of first measurement means (5) are constituted as an analyzer wheel, the first disks (32, 32') are provided with sensors (34.1, 34.2) which output repeatable high accuracy signals depending on a rotary motion of a rotary part (3), and an angle position of the rotary part is calculated by evaluation of the high accuracy signals. The number of rotations of the rotary part is calculated by evaluating low accuracy signals to be generated by second measurement means (7). |
