IN2012DN03047A - - Google Patents

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Publication number
IN2012DN03047A
IN2012DN03047A IN3047DEN2012A IN2012DN03047A IN 2012DN03047 A IN2012DN03047 A IN 2012DN03047A IN 3047DEN2012 A IN3047DEN2012 A IN 3047DEN2012A IN 2012DN03047 A IN2012DN03047 A IN 2012DN03047A
Authority
IN
India
Prior art keywords
signal
measured
change
derivative
rate
Prior art date
Application number
Other languages
English (en)
Inventor
Ian Crickmore Roger
John Hill David
Original Assignee
Qinetiq Ltd
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 Qinetiq Ltd filed Critical Qinetiq Ltd
Publication of IN2012DN03047A publication Critical patent/IN2012DN03047A/en

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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
    • G01D5/35303—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 a reference fibre, e.g. interferometric devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
IN3047DEN2012 2009-09-30 2010-09-24 IN2012DN03047A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0917150.5A GB0917150D0 (en) 2009-09-30 2009-09-30 Phase based sensing
PCT/GB2010/001802 WO2011039501A2 (en) 2009-09-30 2010-09-24 Phase based sensing

Publications (1)

Publication Number Publication Date
IN2012DN03047A true IN2012DN03047A (zh) 2015-07-31

Family

ID=41350608

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3047DEN2012 IN2012DN03047A (zh) 2009-09-30 2010-09-24

Country Status (11)

Country Link
US (1) US8537345B2 (zh)
EP (1) EP2483639B1 (zh)
JP (1) JP5469749B2 (zh)
CN (1) CN102612639B (zh)
BR (1) BR112012007192B1 (zh)
CA (1) CA2775845C (zh)
GB (1) GB0917150D0 (zh)
IN (1) IN2012DN03047A (zh)
MX (1) MX2012003815A (zh)
RU (1) RU2556748C2 (zh)
WO (1) WO2011039501A2 (zh)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0810977D0 (en) * 2008-06-16 2008-07-23 Qinetiq Ltd Phase based sensing
AU2009334819B2 (en) 2008-12-31 2013-12-12 Shell Internationale Research Maatschappij B.V. Method for monitoring deformation of well equipment
WO2010091404A1 (en) 2009-02-09 2010-08-12 Shell Oil Company Method of detecting fluid in-flows downhole
AU2009339275B2 (en) 2009-02-09 2013-06-27 Shell Internationale Research Maatschappij B.V. Areal monitoring using distributed acoustic sensing
US9109944B2 (en) 2009-12-23 2015-08-18 Shell Oil Company Method and system for enhancing the spatial resolution of a fiber optical distributed acoustic sensing assembly
AU2010336498B2 (en) 2009-12-23 2014-11-20 Shell Internationale Research Maatschappij B.V. Detecting broadside and directional acoustic signals with a fiber optical distributed acoustic sensing (DAS) assembly
WO2011163286A1 (en) 2010-06-25 2011-12-29 Shell Oil Company Signal stacking in fiber optic distributed acoustic sensing
CA2809660C (en) 2010-09-01 2016-11-15 Schlumberger Canada Limited Distributed fiber optic sensor system with improved linearity
US9322702B2 (en) 2010-12-21 2016-04-26 Shell Oil Company Detecting the direction of acoustic signals with a fiber optical distributed acoustic sensing (DAS) assembly
WO2012087603A1 (en) 2010-12-21 2012-06-28 Shell Oil Company System and method for making distributed measurements using fiber optic cable
US9074462B2 (en) 2011-03-09 2015-07-07 Shell Oil Company Integrated fiber optic monitoring system for a wellsite and method of using same
GB2489749B (en) 2011-04-08 2016-01-20 Optasense Holdings Ltd Fibre optic distributed sensing
WO2012156434A2 (en) 2011-05-18 2012-11-22 Shell Internationale Research Maatschappij B.V. Method and system for protecting a conduit in an annular space around a well casing
AU2012271016B2 (en) 2011-06-13 2014-12-04 Shell Internationale Research Maatschappij B.V. Hydraulic fracture monitoring using active seismic sources with receivers in the treatment well
CA2839212C (en) 2011-06-20 2019-09-10 Shell Internationale Research Maatschappij B.V. Fiber optic cable with increased directional sensitivity
GB201112161D0 (en) * 2011-07-15 2011-08-31 Qinetiq Ltd Portal monitoring
GB2506794B (en) 2011-08-09 2016-08-17 Shell Int Research Method and apparatus for measuring seismic parameters of a seismic vibrator
CN103988089B (zh) 2011-12-15 2017-12-05 国际壳牌研究有限公司 用光纤分布式声感测(das)组合检测横向声信号
US10088353B2 (en) 2012-08-01 2018-10-02 Shell Oil Company Cable comprising twisted sinusoid for use in distributed sensing
WO2014201316A1 (en) * 2013-06-13 2014-12-18 Schlumberger Canada Limited Fiber optic distributed vibration sensing with wavenumber sensitivity correction
CA2938526C (en) 2014-03-24 2019-11-12 Halliburton Energy Services, Inc. Well tools with vibratory telemetry to optical line therein
EP3111042B1 (en) * 2014-05-02 2019-10-30 Halliburton Energy Services, Inc. Distributed acoustic sensing gauge length effect mitigation
WO2016117044A1 (ja) * 2015-01-21 2016-07-28 ニューブレクス株式会社 分布型光ファイバ音波検出装置
WO2017087792A1 (en) * 2015-11-20 2017-05-26 Sentek Instrument, Llc Method and apparatus for distributed sensing
US10359302B2 (en) 2015-12-18 2019-07-23 Schlumberger Technology Corporation Non-linear interactions with backscattered light
GB201611326D0 (en) * 2016-06-29 2016-08-10 Optasense Holdings Ltd Distributed fibre optic sensing for rail monitoring
US11976552B2 (en) 2016-10-05 2024-05-07 Halliburton Energy Services, Inc. Distributed sensing systems and methods with spatial location correlation
US11237025B2 (en) * 2017-07-26 2022-02-01 Terra15 Pty Ltd Distributed optical sensing systems and methods
KR102404377B1 (ko) * 2017-10-27 2022-05-31 주식회사 케이티 광 펄스를 이용한 인프라 모니터링 시스템 및 방법
CN110553674B (zh) * 2018-05-30 2021-05-18 华为技术有限公司 一种测量方法及测量装置
WO2020032878A1 (en) 2018-08-08 2020-02-13 Aselsan Elektroni̇k Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ Extinction ratio free phase sensitive optical time domain reflectometry based distributed acoustic sensing system
US11378443B2 (en) * 2019-05-22 2022-07-05 Nec Corporation Performance of Rayleigh-based phase-OTDR with correlation-based diversity combining and bias removal
US11320304B2 (en) * 2019-05-22 2022-05-03 Nec Corporation Multi-frequency coherent distributed acoustic sensing (DAS) with single transmitter / receiver pair using offset Tx / Rx frequency framing scheme
FR3104730B1 (fr) * 2019-12-12 2021-12-24 Thales Sa Dispositif de mesure de signaux delivres par un reseau de capteurs a base de cavites laser a fibre optique
US20210318162A1 (en) * 2020-04-08 2021-10-14 Nec Laboratories America, Inc Two stage processing distributed fiber optic sensing (dfos) interrogator for acoustic modulated signals
IT202200004667A1 (it) 2022-03-11 2022-06-11 Sestosensor S R L Rivelatore di fase e polarizzazione per sensori acustici distribuiti a fibre ottiche ed interrogatore basato sullo stesso

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121155A (en) 1976-12-02 1978-10-17 The Charles Stark Draper Laboratory, Inc. Position readout device
US4231260A (en) 1978-11-03 1980-11-04 The Charles Stark Draper Laboratory, Inc. Position determining system
US4699513A (en) 1985-02-08 1987-10-13 Stanford University Distributed sensor and method using coherence multiplexing of fiber-optic interferometric sensors
US4697926A (en) 1985-02-08 1987-10-06 The Board Of Trustees Of The Leland Stanford Junior University Coherent distributed sensor and method using short coherence length sources
US4770535A (en) 1985-02-08 1988-09-13 The Board Of Trustees Of The Leland Stanford Junior University Distributed sensor array and method using a pulsed signal source
US4649529A (en) 1985-12-02 1987-03-10 Exxon Production Research Co. Multi-channel fiber optic sensor system
GB8609732D0 (en) 1986-04-22 1986-05-29 Plessey Co Plc Optical fibre sensing systems
US4848906A (en) 1987-02-02 1989-07-18 Litton Systems, Inc. Multiplexed fiber optic sensor
GB2219902B (en) * 1988-06-14 1992-01-22 Plessey Co Plc Optical sensing systems
US5787053A (en) 1989-07-07 1998-07-28 The United States Of America As Represented By The Secretary Of The Navy Continuous fiber pulse reflecting means
US5140154A (en) 1991-01-16 1992-08-18 The United States Of America As Represented By The Secretary Of The Navy Inline fiber optic sensor arrays with delay elements coupled between sensor units
JPH0545209A (ja) * 1991-08-09 1993-02-23 Oki Electric Ind Co Ltd 光音響センサアレイシステム
US5412474A (en) 1992-05-08 1995-05-02 Smithsonian Institution System for measuring distance between two points using a variable frequency coherent source
RU2091762C1 (ru) * 1994-06-01 1997-09-27 Акционерное общество открытого типа "Лыткаринский завод оптического стекла" Рефлектометр
US5680489A (en) 1996-06-28 1997-10-21 The United States Of America As Represented By The Secretary Of The Navy Optical sensor system utilizing bragg grating sensors
US6522797B1 (en) 1998-09-01 2003-02-18 Input/Output, Inc. Seismic optical acoustic recursive sensor system
US6449046B1 (en) 1999-05-17 2002-09-10 Chung-Shan Institute Of Science And Technology Optically amplified WDM/TDM hybrid polarization-insensitive fiber-optic interferometric sensor system
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
US6785004B2 (en) 2000-11-29 2004-08-31 Weatherford/Lamb, Inc. Method and apparatus for interrogating fiber optic sensors
US7557929B2 (en) * 2001-12-18 2009-07-07 Massachusetts Institute Of Technology Systems and methods for phase measurements
US7119325B2 (en) 2003-01-27 2006-10-10 Bookham Technology Plc System and method for monitoring environmental effects using optical sensors
US7003202B2 (en) * 2003-04-28 2006-02-21 The Furukawa Electric Co., Ltd. Method and system for measuring the wavelength dispersion and nonlinear coefficient of an optical fiber, method of manufacturing optical fibers, method of measuring wavelength-dispersion distribution, method of compensating for measurement errors, and method of specifying conditions of measurement
JP2005014059A (ja) 2003-06-26 2005-01-20 Ricoh Co Ltd 超短パルスレーザ加工法及び加工装置並びに構造体
GB2406376A (en) * 2003-09-24 2005-03-30 Qinetiq Ltd Surveillance system including serial array of fiber optic point sensors
US7433045B2 (en) 2003-10-10 2008-10-07 Optoplan As Active coherence reduction for interferometer interrogation
GB0424305D0 (en) 2004-11-03 2004-12-01 Polarmetrix Ltd Phase-disturbance location and measurement in optical-fibre interferometric reflectometry
US7336365B2 (en) 2005-02-11 2008-02-26 Optoplan As Method and apparatus for suppression of crosstalk and noise in time-division multiplexed interferometric sensor systems
FR2889305B1 (fr) 2005-07-28 2007-10-19 Sercel Sa Reseau d'interferometres a fibre optique
US7327462B2 (en) 2005-08-17 2008-02-05 Litton Systems, Inc. Method and apparatus for direct detection of signals from a differential delay heterodyne interferometric system
GB0521713D0 (en) * 2005-10-25 2005-11-30 Qinetiq Ltd Traffic sensing and monitoring apparatus
US7372576B2 (en) 2005-11-01 2008-05-13 Agilent Technologies, Inc. System and method for generating beams of light using an anisotropic acousto-optic modulator
US7375819B2 (en) 2005-11-01 2008-05-20 Agilent Technologies, Inc. System and method for generating beams of light using an anisotropic acousto-optic modulator
US8670662B2 (en) * 2006-04-03 2014-03-11 British Telecommunications Public Limited Company Evaluating the position of an optical fiber disturbance
GB2442745B (en) 2006-10-13 2011-04-06 At & T Corp Method and apparatus for acoustic sensing using multiple optical pulses
GB2442746B (en) * 2006-10-13 2011-04-06 At & T Corp Method and apparatus for acoustic sensing using multiple optical pulses
GB2443661B (en) * 2006-11-08 2011-08-31 Polarmetrix Ltd Detecting a disturbance in the phase of light propogating in an optical waveguide
GB0705240D0 (en) 2007-03-14 2007-04-25 Qinetiq Ltd Phase based sensing
GB0810977D0 (en) 2008-06-16 2008-07-23 Qinetiq Ltd Phase based sensing
GB0815523D0 (en) 2008-08-27 2008-10-01 Qinetiq Ltd Phase based sensing

Also Published As

Publication number Publication date
RU2012117750A (ru) 2013-11-20
CN102612639A (zh) 2012-07-25
JP2013506828A (ja) 2013-02-28
CA2775845C (en) 2017-11-14
EP2483639B1 (en) 2020-03-04
US8537345B2 (en) 2013-09-17
RU2556748C2 (ru) 2015-07-20
WO2011039501A3 (en) 2012-02-16
JP5469749B2 (ja) 2014-04-16
EP2483639A2 (en) 2012-08-08
MX2012003815A (es) 2012-06-19
WO2011039501A2 (en) 2011-04-07
US20120188533A1 (en) 2012-07-26
BR112012007192A2 (pt) 2016-03-29
BR112012007192B1 (pt) 2021-06-22
CA2775845A1 (en) 2011-04-07
CN102612639B (zh) 2014-10-08
GB0917150D0 (en) 2009-11-11

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