| 摘要 |
A device for detecting damage according to one aspect of the invention includes a first speed generator, a second speed generator, a first waveform shaping unit, a second waveform shaping unit, and a determination unit. The determination unit compares second rectangular waves shaped by the second waveform shaping unit with first rectangular waves shaped by the first waveform shaping unit, and, when the first rectangular waves are not output while the second rectangular waves are output, determines that the support member for the armature shaft has been damaged or is worn. |
