| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a torque sensor that can detect any one of disconnection, shortcircuiting, and rare short-circuiting. SOLUTION: Two torque values are detected based on the relative displacement between first and second sensor rings 21 and 22 and that between second and third sensor rings 22 and 23, and each detection value is corrected by a temperature compensation value that is detected by third and fourth sensor rings 23 and 24, thus obtaining a temperature-compensated main output and sub output. Then, it can be detected whether there is a failure according to the difference between the both, thus detecting a failure such as a rare short- circuiting that could not be detected by prior arts.</p> |
