Method and apparatus for detecting a structural fault in a structure using a brillouin gain spectrum obtained at a point along a sensing optical fiber
US10031043B2 · kind B2 · utility
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Key dates
| Filing date | Dec 2, 2013 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Sep 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/322
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting a structural fault in a structure includes the steps of, (a) performing a Brillouin measurement at a point along a sensing optical fiber which operably cooperates with the structure, to obtain a Brillouin gain spectrum at that point; (b) identifying at least two curves which, when added together, best fit the Brillouin gain spectrum; (c) identifying if peaks of the least two curves occur at different frequencies so as to determine if the structure has a structural fault. There is further provided a corresponding apparatus for detecting a structural fault in a structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.