Distributed, spatially resolving optical fiber strain gauge
US4761073A · kind A · utility
128Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1986 |
| Grant date | Aug 2, 1988 |
| Priority date | — |
| Expiry date | Oct 3, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K5/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A distributed, spatially resolving optical fiber strain gauge in which the core of the optical fiber is written with periodic grating patterns effective for transmitting and reflecting light injected into the core. Spectral shifts in the transmitted and reflected light indicate the intensity of strain or temperature variations at positions of the grating corresponding to the associated wavelengths of injected light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.