| 摘要 |
<p>A fault diagnosis device is provided with: a sensor for measuring the oscillations of a rolling bearing; and a processing unit for diagnosing a rolling bearing fault on the basis of an oscillation waveform measured by using the sensor. The processing unit includes a conversion unit and a diagnosis unit. The conversion unit converts a pulse waveform (k1), which periodically appears in the oscillation waveform due to the rolling bearing fault, into an inverted sawtooth waveform (k2) which has a constant signal width that is greater than the envelope of each pulse waveform. The diagnosis unit diagnoses the rolling bearing fault on the basis of the inverted sawtooth waveform (k2).</p> |
