| 摘要 |
<p>A rotation angle sensor (1) has first and second detection gears (3,4) interlinked with and rotatable with a steering shaft, a magnetic sensor (32) to detect a rotation angle of the first detection gear (3), and a magnetic sensor (42) to detect a rotation angle of the second detection gear (4). The rotation angle sensor also has a processor (5) to calculate a period number of the first detection gear (3) according to rotational positions detected by the magnetic sensors (32) and compute a rotation angle of the steering shaft according to the calculated period number and detected rotation angle of the first detection gear (3). <IMAGE></p> |
