Distributed fiber optic sensor
US5451772A · kind A · utility
44Cited by
5References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1994 |
| Grant date | Sep 19, 1995 |
| Priority date | — |
| Expiry date | Jan 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2290/25
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A distributed optical fiber sensor for sensing physical characteristics of an object, such as strain, includes several discontinuities, each pair of discontinuities being placed at one specific location on the object. A laser beam is past through the fiber and the discontinuities generate components from the beams having parameters indicative of the respective physical characteristics. The components combine in a composite beam which is detected outside the beam and separated into the respective components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.