| 摘要 |
A signal processing system for monitoring the brush arcing potential at the slip rings of a generator supplied through the brushes with a field potential having recurring high-energy noise spikes in the same frequency band as the signal to be monitored, and to give an alarm when the brush arcing potential exceeds a certain critical value. The system eliminates the noise spikes by gating the signal for a preset time at a predetermined time after the occurrence of a noise spike.
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