Acoustic monitor for rotary electrical machinery
US4722226A · kind A · utility
8Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1986 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Apr 10, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H3/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Loose field windings in a rotating electrical machine are detected by sensing acoustic waves created by stator bars and stator wedges. A sensor is mounted on the rotor which responds to sensed acoustic waves by generating an electrical signal. The signal is suitably conditioned and transmitted by telemetry means to a computer for processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.