CA2502275C - Systeme et methode d'amelioration de la resolution d'un detecteur reparti - Google Patents

Systeme et methode d'amelioration de la resolution d'un detecteur reparti Download PDF

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Publication number
CA2502275C
CA2502275C CA 2502275 CA2502275A CA2502275C CA 2502275 C CA2502275 C CA 2502275C CA 2502275 CA2502275 CA 2502275 CA 2502275 A CA2502275 A CA 2502275A CA 2502275 C CA2502275 C CA 2502275C
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Prior art keywords
optical radiation
pulse
optical
brillouin
launching
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CA 2502275
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CA2502275A1 (fr
Inventor
Anthony Brown
Bruce Colpitts
Kellie A.S. Brown
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Darkpulse Technologies Inc
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University of New Brunswick
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
    • 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
    • G01D5/35338—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 other arrangements than interferometer arrangements
    • G01D5/35354—Sensor working in reflection
    • G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
    • G01D5/35364—Sensor working in reflection using backscattering to detect the measured quantity using inelastic backscattering to detect the measured quantity, e.g. using Brillouin or Raman backscattering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/39—Testing of optical devices, constituted by fibre optics or optical waveguides in which light is projected from both sides of the fiber or waveguide end-face

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

Un système de capteur distribué d'analyse optique dans le domaine temporel de Brillouin (BOTDA) et de la méthode d'utiliser une onde continue (oc) de Stokes interrompue par une impulsion sombre pour une meilleure résolution spatiale. L'onde continue de Stokes entraîne un épuisement continu de l'onde de pompage. L'impulsion sombre entraîne l'arrêt pour la durée de l'impulsion. Les interactions de Brillouin sont mesurées lors de l'impulsion sombre. Des impulsions sombres très étroites peuvent être utilisées, car suffisamment d'énergie d'onde de Stokes est maintenue. Le système produit un signal plus fort dans le domaine temporel et un spectre de Brillouin de largeur de ligne plus étroite que les techniques conventionnelles en utilisant une impulsion lumineuse de Stokes. Des impulsions de mesure plus étroites peuvent être utilisées permettant d'améliorer la résolution spatiale. Une onde de Stokes quasi continue peut être utilisée pour réduire l'effet de diffusion de Brillouin stimulée (SBS) dans les fibres de mesure longues. Le système peut être utilisé pour des mesures de contrainte ou de température distribuées.
CA 2502275 2004-03-26 2005-03-24 Systeme et methode d'amelioration de la resolution d'un detecteur reparti Active CA2502275C (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US55637404P 2004-03-26 2004-03-26
US60/556,374 2004-03-26
US58749904P 2004-07-14 2004-07-14
US60/587,499 2004-07-14

Publications (2)

Publication Number Publication Date
CA2502275A1 CA2502275A1 (fr) 2005-09-26
CA2502275C true CA2502275C (fr) 2008-08-05

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US (1) US7245790B2 (fr)
CA (1) CA2502275C (fr)

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CN105784190A (zh) * 2014-12-23 2016-07-20 北京邮电大学 一种基于受激布里渊效应的差分式温度传感器
CN110231058A (zh) * 2019-05-28 2019-09-13 太原理工大学 一种基底噪声抑制的混沌布里渊动态光栅产生装置及方法

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DE102006023588B3 (de) * 2006-05-17 2007-09-27 Sächsisches Textilforschungsinstitut eV Verwendung eines multifunktionalen, sensorbasierten Geotextilsystems zur Deichertüchtigung, für räumlich ausgedehntes Deichmonitoring sowie für die Gefahrenerkennung im Hochwasserfall
US7356207B2 (en) 2006-06-05 2008-04-08 Honeywell International, Inc. Method and system for adjusting the sensitivity of optical sensors
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EP2063245A4 (fr) * 2006-08-24 2012-03-14 Sumitomo Electric Industries Capteur de distribution de caractéristiques à fibre optique
JP5070874B2 (ja) * 2007-02-14 2012-11-14 住友電気工業株式会社 測定装置、異常検知装置及び異常検知方法
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US20090116000A1 (en) * 2007-11-01 2009-05-07 Jason Kiddy Fiber optic shape determination system
WO2011022829A1 (fr) * 2009-08-27 2011-03-03 University Of New Brunswick Système et procédé d’analyse brillouin
WO2011050136A1 (fr) * 2009-10-21 2011-04-28 Redfern Integrated Optics, Inc. Système et procédé d'utilisation d'un oscillateur optique verrouillé de manière cohérente avec un décalage de fréquence de brillouin pour des applications basées sur des fibres optiques
WO2011063490A1 (fr) * 2009-11-26 2011-06-03 University Of New Brunswick Boucle à phase asservie
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CN101819073B (zh) * 2010-05-11 2011-08-17 中国计量学院 采用序列脉冲编码解码的分布式光纤拉曼温度传感器
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CA2783023A1 (fr) * 2011-07-12 2013-01-12 University Of New Brunswick Methode et appareil permettant d'estimer la frequence centrale
CN102322806B (zh) * 2011-08-01 2013-08-07 杭州欧忆光电科技有限公司 一种混沌激光相关布里渊光时域分析器
WO2013020276A1 (fr) * 2011-08-10 2013-02-14 中国计量学院 Analyseur optique de brillouin en domaine temporel d'un amplificateur raman laser intégré à fibre optique chaotique
US8948550B2 (en) 2012-02-21 2015-02-03 Corning Incorporated Sensing systems and few-mode optical fiber for use in such systems
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CN103698049B (zh) * 2013-12-18 2016-09-14 中国能源建设集团广东省电力设计研究院有限公司 基于布里渊散射的分布式测量系统及方法
CN104089636B (zh) * 2014-07-15 2017-10-24 鞍山鹏泽伟业科技有限公司 一种基于布里渊散射双峰激励式监测仪
JP6356039B2 (ja) * 2014-10-20 2018-07-11 古河電気工業株式会社 光ファイバの測定方法および測定装置
CN105783955B (zh) * 2016-03-28 2017-10-13 太原理工大学 基于高阶斯托克斯波的灵敏度可调分布式光纤传感系统
US9869607B2 (en) 2016-04-21 2018-01-16 General Electric Company Systems and methods for distributed measurement
CN107218902B (zh) * 2017-07-06 2019-08-09 中国科学院半导体研究所 基于双激光光源锁频与拍频测量的光纤光栅信号解调系统
CA3039410A1 (fr) 2018-04-06 2019-10-06 Weir-Jones Engineering Consultants Ltd. Systemes et methodes de surveillance de l'integrite structurelle des pentes
CN109084830B (zh) * 2018-06-25 2020-08-21 太原理工大学 面向采空区交通基础设施的光纤多参量检测系统及方法
CN108827177A (zh) * 2018-07-05 2018-11-16 重庆大学 长距离分布式布里渊动态应变测量系统
CN108917804A (zh) * 2018-09-03 2018-11-30 哈尔滨工业大学 基于啁啾链的快速长距离分布式布里渊光纤传感装置
US11719570B2 (en) * 2018-09-24 2023-08-08 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Methods and apparatuses for acoustic detection using temporary Brillouin gratings
CN111220189B (zh) * 2020-01-17 2021-04-13 西南交通大学 一种布里渊光时域分析传感装置及非本地效应补偿方法
CN111307188B (zh) * 2020-02-22 2021-09-14 太原理工大学 一种基于噪声调制的免扫频botda装置
TW202207558A (zh) * 2020-06-03 2022-02-16 美商富克有限公司 使用共振器差分技術之光子裝置
JP2023528463A (ja) * 2020-06-03 2023-07-04 フルークコーポレイション 光干渉計を介した光信号の伝送を利用する温度測定システム及び方法
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CN105784190A (zh) * 2014-12-23 2016-07-20 北京邮电大学 一种基于受激布里渊效应的差分式温度传感器
CN105784190B (zh) * 2014-12-23 2019-10-18 北京邮电大学 一种基于受激布里渊效应的差分式温度传感器
CN110231058A (zh) * 2019-05-28 2019-09-13 太原理工大学 一种基底噪声抑制的混沌布里渊动态光栅产生装置及方法
CN110231058B (zh) * 2019-05-28 2021-05-11 太原理工大学 一种基底噪声抑制的混沌布里渊动态光栅产生装置及方法

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US20050213869A1 (en) 2005-09-29
US7245790B2 (en) 2007-07-17
CA2502275A1 (fr) 2005-09-26

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