JP4526537B2 - 光ファイバ監視システム - Google Patents
光ファイバ監視システム Download PDFInfo
- Publication number
- JP4526537B2 JP4526537B2 JP2006527475A JP2006527475A JP4526537B2 JP 4526537 B2 JP4526537 B2 JP 4526537B2 JP 2006527475 A JP2006527475 A JP 2006527475A JP 2006527475 A JP2006527475 A JP 2006527475A JP 4526537 B2 JP4526537 B2 JP 4526537B2
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- Prior art keywords
- fiber optic
- sensor
- fiber
- optical fiber
- interrogation
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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- 239000013307 optical fiber Substances 0.000 title claims description 33
- 238000012544 monitoring process Methods 0.000 title claims description 22
- 239000000835 fiber Substances 0.000 claims description 70
- 230000003287 optical effect Effects 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 230000010363 phase shift Effects 0.000 claims 1
- 238000002310 reflectometry Methods 0.000 claims 1
- 238000013459 approach Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Images
Classifications
-
- 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
- G01D5/35303—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
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
- G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
- G08B13/186—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier using light guides, e.g. optical fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
- Optical Transform (AREA)
- Geophysics And Detection Of Objects (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Paper (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Optical Communication System (AREA)
Description
(i)請求項1に記載のセンサを、前記経路の上にまたは前記経路の下に位置付けるステップと、
(ii)センサから受け取られた光信号を分析して、経路沿いの物体の位置、または物体が前記経路を横切った位置を確定するステップとを含むことを特徴とする。
Claims (16)
- 監視システム(10)のための光ファイバセンサアレイ(15)であって、該光ファイバセンサアレイが、少なくとも2つの光ファイバポイントセンサ(16)を含み、連続する光ファイバポイントセンサ(16)の各ペアが、分散光ファイバセンサ(18)によって結び付けられ、
前記光ファイバセンサアレイ(15)が、質問システム(12)に接続され、前記質問システム(12)が、光ファイバセンサアレイ(15)の少なくとも1つのセンサに印加された力に起因する、光ファイバセンサアレイ(15)の少なくとも1つのセンサにおける光位相偏位に応答し、かつ前記力が印加された位置を確定することを特徴とする光ファイバセンサアレイ(15)。 - 光ファイバ監視システム(10)であって、該光ファイバ監視システム(10)が、質問システム(12)に接続された請求項1に記載の光ファイバセンサアレイ(15)を含み、前記質問システム(12)が、光ファイバセンサアレイ(15)の少なくとも1つのセンサに印加された力に起因する、光ファイバセンサアレイ(15)の少なくとも1つのセンサにおける光位相偏位に応答し、かつ前記力が印加された位置を確定するように構成されることを特徴とする光ファイバ監視システム(10)。
- 光ファイバセンサアレイが、光ファイバケーブルによって質問システムに接続される、請求項2に記載の光ファイバ監視システム。
- 光ファイバセンサアレイが、トランスデューサおよびワイヤケーブルによって質問システムに接続される、請求項2に記載の光ファイバ監視システム。
- 光ファイバポイントセンサが、曲げディスクに巻かれた光ファイバを含む、請求項2に記載の光ファイバ監視システム。
- 光ファイバポイントセンサが、受振器である、請求項2に記載の光ファイバ監視システム。
- 各光ファイバポイントセンサが、光ファイバ加速度計を含む、請求項2に記載の光ファイバ監視システム。
- 分散光ファイバセンサが、ケーブルにかかる圧力、またはケーブルの曲げを測定するケーブル内の光ファイバパッケージを含む、請求項2に記載の光ファイバ監視システム。
- 質問システムが、干渉計質問システムを含む、請求項2に記載のシステム。
- 干渉計質問システムが、反射光測定の干渉計質問システムを含む、請求項9に記載のシステム。
- 反射光測定の干渉計質問システムが、パルス反射光測定の干渉計質問システムを含む、請求項10に記載のシステム。
- パルス反射光測定の干渉計質問システムが、時間分割多重化を使用して個々のセンサを区別する、請求項11に記載のシステム。
- 質問システムが、レイリー後方散乱の質問システムを含む、請求項2に記載のシステム。
- レイリー後方散乱の質問システムが、パルスレイリー後方散乱の質問システムを含む、請求項13に記載のシステム。
- 表面上を移動する物体が、表面上の閉じた経路または固定長の開いた経路を横切る位置を確定する方法であって、
(i)請求項1に記載のセンサを、前記経路の上にまたは前記経路の下に位置付けるステップと、
(ii)センサから受け取られた光信号を分析して、経路に沿った物体の位置、または物体が前記経路を横切った位置を確定するステップとを含むことを特徴とする方法。 - 光信号が、前記位置を探し出しかつ確認するために、アレイ沿いに隣接する光ファイバポイントセンサから受け取られた信号の間の遅延を測定し、かつ前記信号を、光ファイバポイントセンサを結び付ける分散光ファイバアレイからの信号と結合することによって分析される、請求項15に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0322351A GB2406376A (en) | 2003-09-24 | 2003-09-24 | Surveillance system including serial array of fiber optic point sensors |
PCT/GB2004/004076 WO2005031270A1 (en) | 2003-09-24 | 2004-09-24 | Fibre-optic surveillance system |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007506960A JP2007506960A (ja) | 2007-03-22 |
JP4526537B2 true JP4526537B2 (ja) | 2010-08-18 |
Family
ID=29266572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006527475A Expired - Fee Related JP4526537B2 (ja) | 2003-09-24 | 2004-09-24 | 光ファイバ監視システム |
Country Status (9)
Country | Link |
---|---|
US (1) | US7965909B2 (ja) |
EP (1) | EP1664682B1 (ja) |
JP (1) | JP4526537B2 (ja) |
CN (1) | CN100516781C (ja) |
AT (1) | ATE356337T1 (ja) |
DE (1) | DE602004005224T2 (ja) |
GB (1) | GB2406376A (ja) |
IL (1) | IL174411A (ja) |
WO (1) | WO2005031270A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0401053D0 (en) * | 2004-01-17 | 2004-02-18 | Qinetiq Ltd | Improvements in and relating to accelerometers |
WO2006125307A1 (en) * | 2005-05-23 | 2006-11-30 | Lxsix Photonics Inc. | Methods and apparatuses for obtaining information regarding sensors in optical paths |
CA2728105C (en) | 2008-06-17 | 2013-06-18 | Weir-Jones Engineering Consultants Ltd. | System and method for detecting rock fall |
GB2473785B (en) * | 2008-12-22 | 2014-08-20 | Perimeter Security Ind Pty Ltd | Intruder detection system |
US9617848B2 (en) * | 2009-05-27 | 2017-04-11 | Optasense Holdings Limited | Well monitoring by means of distributed sensing means |
US8345229B2 (en) * | 2009-09-28 | 2013-01-01 | At&T Intellectual Property I, L.P. | Long distance optical fiber sensing system and method |
GB0917150D0 (en) * | 2009-09-30 | 2009-11-11 | Qinetiq Ltd | Phase based sensing |
GB201112161D0 (en) * | 2011-07-15 | 2011-08-31 | Qinetiq Ltd | Portal monitoring |
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 |
GB201122229D0 (en) | 2011-12-23 | 2012-02-01 | Qinetiq Ltd | Seismic monitoring |
CN103489275B (zh) * | 2013-08-29 | 2016-12-28 | 广东复安科技发展有限公司 | 一种提高光纤长距离监控定位精度的监测线路以及方法 |
CN103743421B (zh) * | 2013-12-31 | 2016-05-18 | 上海华魏光纤传感技术有限公司 | 基于一芯光纤的多传感方法 |
US20230019450A1 (en) * | 2019-11-25 | 2023-01-19 | Nec Corporation | Position detection device and position detection method |
US11619541B2 (en) * | 2020-04-14 | 2023-04-04 | Nec Corporation | Vehicle speed, direction, and size measurement using temporal distributed fiber optic sensing |
CN112432694B (zh) * | 2020-11-06 | 2021-11-02 | 中冶建筑研究总院有限公司 | 基于分布式光纤传感器的工业厂房动力监测方法 |
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EP0082820A3 (fr) * | 1981-12-21 | 1984-03-21 | Battelle Memorial Institute | Dispositif de détection de pression à fibre optique |
US5991479A (en) * | 1984-05-14 | 1999-11-23 | Kleinerman; Marcos Y. | Distributed fiber optic sensors and systems |
GB8514858D0 (en) * | 1985-06-12 | 1985-07-17 | Gen Electric Co Plc | Sensor devices |
FR2637080B1 (fr) | 1988-09-27 | 1990-11-09 | Labo Electronique Physique | Capteur de pression a fibre optique |
JPH02242119A (ja) * | 1989-03-15 | 1990-09-26 | Sumitomo Electric Ind Ltd | 光ファイバ変位計測システム |
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GB9700269D0 (en) * | 1997-01-08 | 1997-02-26 | York Sensors Ltd | Improvements to optical time domain reflectometry |
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GB2386183A (en) * | 2002-03-05 | 2003-09-10 | Qinetiq Ltd | Optical sensor assembly |
US7187620B2 (en) * | 2002-03-22 | 2007-03-06 | Schlumberger Technology Corporation | Method and apparatus for borehole sensing |
AU2003267555A1 (en) * | 2002-08-30 | 2004-03-19 | Sensor Highway Limited | Method and apparatus for logging a well using a fiber optic line and sensors |
US7036601B2 (en) * | 2002-10-06 | 2006-05-02 | Weatherford/Lamb, Inc. | Apparatus and method for transporting, deploying, and retrieving arrays having nodes interconnected by sections of cable |
-
2003
- 2003-09-24 GB GB0322351A patent/GB2406376A/en not_active Withdrawn
-
2004
- 2004-09-24 EP EP04768620A patent/EP1664682B1/en active Active
- 2004-09-24 AT AT04768620T patent/ATE356337T1/de not_active IP Right Cessation
- 2004-09-24 DE DE602004005224T patent/DE602004005224T2/de active Active
- 2004-09-24 JP JP2006527475A patent/JP4526537B2/ja not_active Expired - Fee Related
- 2004-09-24 US US10/573,671 patent/US7965909B2/en active Active
- 2004-09-24 WO PCT/GB2004/004076 patent/WO2005031270A1/en active IP Right Grant
- 2004-09-24 CN CNB2004800276209A patent/CN100516781C/zh active Active
-
2006
- 2006-03-20 IL IL174411A patent/IL174411A/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
ATE356337T1 (de) | 2007-03-15 |
EP1664682B1 (en) | 2007-03-07 |
JP2007506960A (ja) | 2007-03-22 |
DE602004005224D1 (de) | 2007-04-19 |
DE602004005224T2 (de) | 2007-06-21 |
WO2005031270A1 (en) | 2005-04-07 |
IL174411A0 (en) | 2006-08-01 |
EP1664682A1 (en) | 2006-06-07 |
GB0322351D0 (en) | 2003-10-22 |
GB2406376A (en) | 2005-03-30 |
IL174411A (en) | 2010-04-29 |
US7965909B2 (en) | 2011-06-21 |
CN1856694A (zh) | 2006-11-01 |
US20060257066A1 (en) | 2006-11-16 |
CN100516781C (zh) | 2009-07-22 |
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