Title:
FIBER OPTIC SENSOR
Document Type and Number:
WIPO Patent Application WO2003042636
Kind Code:
A3
Abstract:
A fiber optic sensor includes two reflective elements in series. The first reflective element is formed as a partially mirrored surface on the end of a single-mode optical fiber lead which is bonded into a ferrule. Light introduced into the sensor is reflected from the first or second reflective element and thus follows to optical paths. An interoferometric fiber optic sensing system uses three optical fibers including such a sensor. The three optical fibers form optical paths whose light outputs are caused to interfere. The adjustable length optical fiber is adjusted until an interference fringe appears.
Inventors:
MORISON W DON
MANUELPILLAI GERALD
TENNYSON RODERICK C
CHERPILLOD THIERRY
ROUSE DOMINIC
MANUELPILLAI GERALD
TENNYSON RODERICK C
CHERPILLOD THIERRY
ROUSE DOMINIC
Application Number:
PCT/US2002/030933
Publication Date:
January 22, 2004
Filing Date:
September 30, 2002
Export Citation:
Assignee:
FIBER OPTIC SYSTEMS TECHNOLOGY (CA)
JOLLY GARY (US)
JOLLY GARY (US)
International Classes:
G01D5/353; (IPC1-7): G01D5/353; G01L1/24
Foreign References:
| EP0727640A2 | 1996-08-21 | |||
| US4755668A | 1988-07-05 | |||
| GB2262803A | 1993-06-30 | |||
| US5012088A | 1991-04-30 | |||
| US4671659A | 1987-06-09 |
Download PDF: