Microbend fiber-optic sensor
US4846547A · kind A · utility
11Cited by
9References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1987 |
| Grant date | Jul 11, 1989 |
| Priority date | — |
| Expiry date | Mar 6, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/35377
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a fiber-optic detector and concerns more particularly a detector capable of producing microbends in an optical fiber in response to the variation of a physical quantity or of an environmental parameter. The sensor of the invention consists of an optical fiber provide with a sheath which is covered by a layer exhibiting periodic discontinuities. The sheath and its covering react to the variation of the parameter to be detected in such a manner as to produce microbends of the same periodicity as that of the discontinuities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.