Acoustic monitoring of foreign objects in combustion turbines during operation
US6668655B2 · kind B2 · utility
21Cited by
8References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2001 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Dec 11, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A foreign object impact sensor for use with combustion turbines utilizes a passive acoustic waveguide within the turbine to receive acoustic signals from foreign object impact. The magnitude of these signals is displayed and or stored using a lighted display or other suitable indicating device. The information is also recorded and stored, so that a spectrum signature can be obtained from Fourier analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.