Method and apparatus for monitoring gas turbine blades
US8229646B2 · kind B2 · utility
2Cited by
30References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2008 |
| Grant date | Jul 24, 2012 |
| Priority date | — |
| Expiry date | Mar 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/49
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method (and corresponding apparatus) for monitoring gas turbine blades. The output from an eddy current sensor monitoring the movement of turbine blades past the sensor is processed to determine when the signal train from the sensor omits a signal or pulse corresponding to one of the shaft's full complement of blades. The signal processor compares sensed blade periods with average blade periods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.