Self-diagnosing system for encoder
US7209862B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2005 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Feb 11, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/24461
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A self-diagnosing system for an encoder. The system includes an encoder circuit for outputting information detected by an encoder; a data preparing section provided in the encoder circuit and preparing data representing a state of an abnormal-state judgment factor in connection with at least one of the encoder and an electric motor combined with the encoder; a signal generating section provided in the encoder circuit and generating an abnormal-state signal when the data prepared in the data preparing section represents an abnormal state of the abnormal-state judgment factor; and a storage section provided in the encoder circuit and storing the data representing a state of the abnormal-state judgment factor when the signal generating section generates the abnormal-state signal. The storage section may store the data prepared in the data preparing section at a desired timing not later than the instant the signal generating section generates the abnormal-state signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.