NO20004954D0 - Fiberoptisk akustisk sensoroppstilling basert pÕ sagnac- interferometer - Google Patents

Fiberoptisk akustisk sensoroppstilling basert pÕ sagnac- interferometer

Info

Publication number
NO20004954D0
NO20004954D0 NO20004954A NO20004954A NO20004954D0 NO 20004954 D0 NO20004954 D0 NO 20004954D0 NO 20004954 A NO20004954 A NO 20004954A NO 20004954 A NO20004954 A NO 20004954A NO 20004954 D0 NO20004954 D0 NO 20004954D0
Authority
NO
Norway
Prior art keywords
fiber optic
sensor array
acoustic sensor
array based
sagnac interferometer
Prior art date
Application number
NO20004954A
Other languages
English (en)
Other versions
NO324699B1 (no
NO20004954L (no
Inventor
Benjamin J Vakoc
Michel J F Digonnet
Gordon S Kino
H John Shaw
Original Assignee
Univ Leland Stanford Junior
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 Univ Leland Stanford Junior filed Critical Univ Leland Stanford Junior
Publication of NO20004954D0 publication Critical patent/NO20004954D0/no
Publication of NO20004954L publication Critical patent/NO20004954L/no
Publication of NO324699B1 publication Critical patent/NO324699B1/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
NO20004954A 1998-04-03 2000-10-02 Fiberoptisk akustisk sensoroppstilling basert pa Sagnac-interferometer NO324699B1 (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US8054298P 1998-04-03 1998-04-03
US09/253,446 US6097486A (en) 1998-04-03 1999-02-19 Fiber optic acoustic sensor array based on Sagnac interferometer
PCT/US1999/006763 WO1999051942A1 (en) 1998-04-03 1999-03-29 Fiber optic acoustic sensor array based on sagnac interferometer

Publications (3)

Publication Number Publication Date
NO20004954D0 true NO20004954D0 (no) 2000-10-02
NO20004954L NO20004954L (no) 2000-11-30
NO324699B1 NO324699B1 (no) 2007-12-03

Family

ID=26763646

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20004954A NO324699B1 (no) 1998-04-03 2000-10-02 Fiberoptisk akustisk sensoroppstilling basert pa Sagnac-interferometer

Country Status (7)

Country Link
US (1) US6097486A (no)
EP (1) EP1068492B1 (no)
JP (1) JP4181747B2 (no)
AU (1) AU3118799A (no)
DE (1) DE69921794T2 (no)
NO (1) NO324699B1 (no)
WO (1) WO1999051942A1 (no)

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US6278657B1 (en) * 1998-04-03 2001-08-21 The Board Of Trustees Of The Leland Stanford Junior University Folded sagnac sensor array
US6678211B2 (en) 1998-04-03 2004-01-13 The Board Of Trustees Of The Leland Stanford Junior University Amplified tree structure technology for fiber optic sensor arrays
US6667935B2 (en) 1998-04-03 2003-12-23 The Board Of Trustees Of The Leland Stanford Junior University Apparatus and method for processing optical signals from two delay coils to increase the dynamic range of a sagnac-based fiber optic sensor array
US6456381B1 (en) * 1998-04-28 2002-09-24 Fujikura Ltd. Apparatus for and method of using optical interference of light propagating through an optical fiber loop
US6429965B1 (en) * 1998-11-02 2002-08-06 The Board Of Trustees The Leland Stanford Junior University Polarization and wavelength stable superfluorescent sources
KR100305390B1 (ko) * 1999-05-04 2001-09-13 윤덕용 배열형 사그냑 간섭계 음향센서 및 음향신호 검출방법
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
DE10029336A1 (de) * 2000-03-20 2002-01-03 Sel Alcatel Ag Breitbandige optische Lichtquelle, Verwendung einer breitbandigen optischen Lichtquelle sowie Verfahren zum Demultiplexen
TW434380B (en) * 2000-08-15 2001-05-16 Chung Shan Inst Of Science Sagnac interference optical fiber distribution type online leakage detection method and device
US6466706B1 (en) * 2000-10-11 2002-10-15 The United States Of America As Represented By The Secretary Of The Navy Pulsed system and method for fiber optic sensor
US6687008B1 (en) * 2000-10-19 2004-02-03 Kla-Tencor Corporation Waveguide based parallel multi-phaseshift interferometry for high speed metrology, optical inspection, and non-contact sensing
AUPR599401A0 (en) * 2001-06-28 2001-07-19 University Of Sydney, The Improved signal processing for passive interferometry
US6778720B1 (en) * 2002-04-02 2004-08-17 Optiphase, Inc. Dual slope fiber optic array interrogator
US6782160B2 (en) * 2002-04-10 2004-08-24 Lockheed Martin Corporation Optical-signal coupler and related method
US7019840B2 (en) * 2003-06-17 2006-03-28 Seagate Technology Llc Dual-beam interferometer for ultra-smooth surface topographical measurements
ES2261081B1 (es) * 2005-04-19 2007-11-16 Universidad Politecnica De Valencia Interferometro optico.
JP5268367B2 (ja) 2008-01-10 2013-08-21 株式会社東芝 位相変調子、位相変調子組体及び光センサ
US20110116099A1 (en) * 2008-01-17 2011-05-19 Halliburton Energy Services, Inc. Apparatus and method for detecting pressure signals
US8736822B2 (en) * 2008-01-17 2014-05-27 Halliburton Energy Services, Inc. Apparatus and method for detecting pressure signals
US20110109912A1 (en) * 2008-03-18 2011-05-12 Halliburton Energy Services , Inc. Apparatus and method for detecting pressure signals
CA3175447A1 (en) 2009-05-27 2010-12-02 Silixa Ltd Method and apparatus for optical sensing
WO2012024110A1 (en) * 2010-08-20 2012-02-23 Swamp Optics Extreme light pulse-front tilt and its application to single shot measurement of picosecond to nanosecond laser pulses
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
US20140230536A1 (en) * 2013-02-15 2014-08-21 Baker Hughes Incorporated Distributed acoustic monitoring via time-sheared incoherent frequency domain reflectometry
CN103438987B (zh) * 2013-08-30 2015-10-28 西北工业大学 基于超指向性小孔径圆柱阵的舰船辐射噪声源分辨方法
US9926778B2 (en) 2013-12-20 2018-03-27 Halliburton Energy Services, Inc. Downhole EM sensing using SAGNAC interferometer for wellbore monitoring
EP3332083A4 (en) 2015-10-29 2018-07-11 Halliburton Energy Services, Inc. Mud pump stroke detection using distributed acoustic sensing
US10551190B1 (en) * 2015-10-30 2020-02-04 Garmin International, Inc. Multi Coriolis structured gyroscope
CN105738268B (zh) * 2016-05-10 2017-06-16 河海大学 复杂环境下水工程渗流性态一体化监测系统及监测方法
RU2634490C1 (ru) * 2016-05-12 2017-10-31 Публичное акционерное общество "Уфимское моторостроительное производственное объединение" ПАО "УМПО" Квазираспределенная волоконно-оптическая информационно-измерительная система
EP3658859A4 (en) * 2017-07-26 2020-08-12 Terra15 Pty Ltd DISTRIBUTED OPTICAL DETECTION SYSTEMS AND METHODS
CN111609875B (zh) * 2020-06-10 2021-12-28 电子科技大学 基于啁啾连续光的数字域可调分布式光纤传感系统及方法
CN114353836B (zh) * 2022-01-17 2022-09-09 中国人民解放军国防科技大学 光纤传感系统3×3信号检测中乘性强度噪声的抑制方法

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US5311592A (en) * 1986-06-11 1994-05-10 Mcdonnell Douglas Corporation Sagnac interferometer based secure communication system
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US5589937A (en) * 1994-10-31 1996-12-31 The United States Of America As Represented By The Secretary Of The Navy Fiber optic self-multiplexing amplified ring transducer and force transfer sensor with pressure compensation
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US5866898A (en) * 1996-07-12 1999-02-02 The Board Of Trustees Of The Leland Stanford Junior University Time domain multiplexed amplified sensor array with improved signal to noise ratios

Also Published As

Publication number Publication date
DE69921794D1 (de) 2004-12-16
NO324699B1 (no) 2007-12-03
NO20004954L (no) 2000-11-30
DE69921794T2 (de) 2005-12-15
EP1068492A1 (en) 2001-01-17
US6097486A (en) 2000-08-01
JP4181747B2 (ja) 2008-11-19
JP2002510795A (ja) 2002-04-09
EP1068492B1 (en) 2004-11-10
WO1999051942A1 (en) 1999-10-14
AU3118799A (en) 1999-10-25

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