NO990340L - Fiberoptisk sensor som bruker WDM-tappkobler - Google Patents

Fiberoptisk sensor som bruker WDM-tappkobler

Info

Publication number
NO990340L
NO990340L NO990340A NO990340A NO990340L NO 990340 L NO990340 L NO 990340L NO 990340 A NO990340 A NO 990340A NO 990340 A NO990340 A NO 990340A NO 990340 L NO990340 L NO 990340L
Authority
NO
Norway
Prior art keywords
fiber optic
optical
wdm
signals
optic sensor
Prior art date
Application number
NO990340A
Other languages
English (en)
Other versions
NO990340D0 (no
Inventor
Donald A Frederick
Original Assignee
Litton Systems Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Litton Systems Inc filed Critical Litton Systems Inc
Publication of NO990340D0 publication Critical patent/NO990340D0/no
Publication of NO990340L publication Critical patent/NO990340L/no

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
    • G01D5/35383—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using multiple sensor devices using multiplexing techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)
  • Optical Transform (AREA)

Abstract

En første optisk signalkilde (104) produserer et første optisk signal som har bølgelengde A.i, og en andre optisk signalkilde (106) produserer et andre optisk signal som har bølgelengde \2- En første WDM-kobler (l 16) er forbundet med den første og andre optiske signalkilde (104, 106) for å kombinere signaler adskilt fra disse. En optisk fiber (l 18) er forbundet med WDM-kobleren (l 16) for å føre de kombinerte optiske signalene fra denne. En andre WDM-kobler (130) er forbundet med den optiske fiberen (118) for å separere de optiske signalene med bølgelengde X\ og ^2- En fiberoptisk sensorkjede (128) som inneholder et flertall av fiberoptiske seniorer (134, 138) er forbundet med den andre WDM-kobleren (130) og anordnet slik at optiske signaler med bølgelengdene \\ og ^2 føres til forskjellige fiberoptiske sensorer (134, 138) i den fiberoptiske sensorkjeden (128). En tredje WDM-kobler (142) er anordnet for å kombinere signaler med bølgelengde X.j og \i avgitt fra den fiberoptiske sensorkjeden (128). En optisk mottagersammensetning (173) er forbundet med den tredje WDM-kobleren (142) og anordnet for å fremskaffe utgangssignalet som svarer til de to bølgelengdene ~k\ og A-2- Demultipleksing og demoduleringsapparat (179) er forbundet med den optiske mottagersammensetningen (173) for å produsere utgangssignaler som svarer til faseendringene for de optiske signalene i de fiberoptiske sensorene (134, 138).
NO990340A 1996-07-25 1999-01-25 Fiberoptisk sensor som bruker WDM-tappkobler NO990340L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/686,988 US5696857A (en) 1996-07-25 1996-07-25 WDM/FDM fiber optic sensor architecture using WDM tap coupler
PCT/US1997/012517 WO1998004940A1 (en) 1996-07-25 1997-07-17 Fiber optic sensor using wdm tap coupler

Publications (2)

Publication Number Publication Date
NO990340D0 NO990340D0 (no) 1999-01-25
NO990340L true NO990340L (no) 1999-03-25

Family

ID=24758567

Family Applications (1)

Application Number Title Priority Date Filing Date
NO990340A NO990340L (no) 1996-07-25 1999-01-25 Fiberoptisk sensor som bruker WDM-tappkobler

Country Status (6)

Country Link
US (1) US5696857A (no)
EP (1) EP0914624A1 (no)
AU (1) AU3803397A (no)
CA (1) CA2261684A1 (no)
NO (1) NO990340L (no)
WO (1) WO1998004940A1 (no)

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TW323415B (en) * 1996-11-29 1997-12-21 Defence Dept Chung Shan Inst The time-division multiplexing of polarization-insensitive fiber optic Michelson interferometric sensors
US6249622B1 (en) * 1998-06-26 2001-06-19 Litton Systems, Inc. Architecture for large optical fiber array using standard 1×2 couplers
GB9908075D0 (en) * 1999-04-09 1999-06-02 Secr Defence An optical fibre sensor assembly
US6282334B1 (en) * 1999-05-13 2001-08-28 Litton Systems, Inc. Large scale WDM/TDM sensor array employing erbium-doped fiber amplifiers
US6507679B1 (en) * 1999-05-13 2003-01-14 Litton Systems, Inc. Long distance, all-optical telemetry for fiber optic sensor using remote optically pumped EDFAs
US6269198B1 (en) 1999-10-29 2001-07-31 Litton Systems, Inc. Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
US6724319B1 (en) 1999-10-29 2004-04-20 Litton Systems, Inc. Acoustic sensing system for downhole seismic applications utilizing an array of fiber optic sensors
GB2417627B (en) * 2002-07-18 2006-07-19 Pgs Americas Inc Fiber-optic seismic array telemetry system, and method
US6850461B2 (en) * 2002-07-18 2005-02-01 Pgs Americas, Inc. Fiber-optic seismic array telemetry, system, and method
US7305153B2 (en) * 2005-06-21 2007-12-04 Litton Systems, Inc. Multi wavelength sensor array
FR2889305B1 (fr) * 2005-07-28 2007-10-19 Sercel Sa Reseau d'interferometres a fibre optique
GB2449941B (en) * 2007-06-08 2011-11-02 Stingray Geophysical Ltd Seismic cable structure
US7622706B2 (en) 2008-01-18 2009-11-24 Pgs Geophysical As Sensor cable and multiplexed telemetry system for seismic cables having redundant/reversible optical connections
EP2131159B1 (en) 2008-06-04 2016-04-13 Sercel Fiber optic Interferometric sensor array with increased multiplexing density
CN102374873B (zh) * 2011-09-19 2014-06-04 武汉邮电科学研究院 一种基于光ofdm的传感系统及其光纤光栅监测方法
US9369321B2 (en) * 2011-09-22 2016-06-14 Northrop Grumman Systems Corporation Increasing sensor data carrying capability of phase generated carriers
CN102607608A (zh) * 2012-03-08 2012-07-25 天津奇谱光电技术有限公司 可扩展电光传感系统
US9234790B2 (en) * 2012-03-19 2016-01-12 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and methods utilizing optical sensors operating in the reflection mode
GB2503694A (en) * 2012-07-04 2014-01-08 Stingray Geophysical Ltd Optical monitoring system
CN103175558B (zh) * 2013-01-17 2015-06-24 广东电网公司电力调度控制中心 分布式光纤传感系统的参数测量装置
CN105588586B (zh) * 2015-12-11 2018-08-21 电子科技大学 一种u型传感光纤部署结构的光纤分布式传感系统
CN107727226A (zh) * 2017-08-31 2018-02-23 电子科技大学 基于光纤感知的油气管道安全检测方法
CN109520532B (zh) * 2018-11-26 2020-10-16 重庆大学 一种光纤法珀传感器的多传感器复用解调系统及处理方法
US12523569B2 (en) * 2023-05-04 2026-01-13 1Finity Inc. Multi-channel power profile estimation

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US4632551A (en) * 1984-06-11 1986-12-30 Litton Systems, Inc. Passive sampling interferometric sensor arrays
US4848906A (en) * 1987-02-02 1989-07-18 Litton Systems, Inc. Multiplexed fiber optic sensor
US4789241A (en) * 1987-02-24 1988-12-06 Mcdonnell Douglas Corporation Optical fiber sensing systems having acoustical optical deflection and; modulation devices
US5475216A (en) * 1990-05-22 1995-12-12 Danver; Bruce A. Fiber optic sensor having mandrel wound reference and sensing arms
US5555086A (en) * 1991-05-31 1996-09-10 Litton Systems, Inc. Coherence multiplexed interferometric signal processing system and method
USH1436H (en) * 1992-10-13 1995-05-02 Kersey Alan D Interferometric fiber optic sensor configuration with pump-induced phase carrier
AU665490B2 (en) * 1993-05-28 1996-01-04 Litton Industries Inc. Fiber optic planar hydrophone
US5394377A (en) * 1993-06-01 1995-02-28 Litton Systems, Inc. Polarization insensitive hydrophone
US5396568A (en) * 1993-09-22 1995-03-07 The Babcock & Wilcox Company Temperature compensation for fiber optic sensors
US5497233A (en) * 1994-07-27 1996-03-05 Litton Systems, Inc. Optical waveguide vibration sensor and method

Also Published As

Publication number Publication date
US5696857A (en) 1997-12-09
WO1998004940A1 (en) 1998-02-05
NO990340D0 (no) 1999-01-25
AU3803397A (en) 1998-02-20
CA2261684A1 (en) 1998-02-05
EP0914624A1 (en) 1999-05-12

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