IL142943A - A device and method for tracking a structure using a counter-advanced signal and a method for locating events - Google Patents
A device and method for tracking a structure using a counter-advanced signal and a method for locating eventsInfo
- Publication number
- IL142943A IL142943A IL14294399A IL14294399A IL142943A IL 142943 A IL142943 A IL 142943A IL 14294399 A IL14294399 A IL 14294399A IL 14294399 A IL14294399 A IL 14294399A IL 142943 A IL142943 A IL 142943A
- Authority
- IL
- Israel
- Prior art keywords
- waveguide
- counter
- signals
- fibre
- propagating
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 83
- 230000003287 optical effect Effects 0.000 claims abstract description 118
- 230000001902 propagating effect Effects 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims description 207
- 239000013307 optical fiber Substances 0.000 claims description 42
- 238000004891 communication Methods 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 15
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 5
- 230000004927 fusion Effects 0.000 description 19
- 238000005259 measurement Methods 0.000 description 9
- 230000005670 electromagnetic radiation Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000007526 fusion splicing Methods 0.000 description 7
- 238000000253 optical time-domain reflectometry Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 238000012935 Averaging Methods 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005693 optoelectronics Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013481 data capture Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000000586 desensitisation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
-
- 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
- G01M11/08—Testing mechanical properties
- G01M11/083—Testing mechanical properties by using an optical fiber in contact with the device under test [DUT]
-
- 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
- G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
- G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0025—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings of elongated objects, e.g. pipes, masts, towers or railways
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0091—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by using electromagnetic excitation or detection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optical Transform (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPP7808A AUPP780898A0 (en) | 1998-12-18 | 1998-12-18 | Counter-propagating signal method for locating events in fibre optic sensor systems |
| AUPQ0126A AUPQ012699A0 (en) | 1999-05-03 | 1999-05-03 | Intrinsic securing of fibre optic communication links |
| PCT/AU1999/001028 WO2000037925A1 (en) | 1998-12-18 | 1999-11-19 | Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL142943A0 IL142943A0 (en) | 2002-04-21 |
| IL142943A true IL142943A (en) | 2004-09-27 |
Family
ID=25645948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL14294399A IL142943A (en) | 1998-12-18 | 1999-11-19 | A device and method for tracking a structure using a counter-advanced signal and a method for locating events |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US6621947B1 (ru) |
| JP (1) | JP4869480B2 (ru) |
| KR (1) | KR100715589B1 (ru) |
| CN (1) | CN1179205C (ru) |
| AU (1) | AU747525B2 (ru) |
| CA (1) | CA2355091C (ru) |
| IL (1) | IL142943A (ru) |
| RU (1) | RU2226270C2 (ru) |
| WO (1) | WO2000037925A1 (ru) |
Families Citing this family (59)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10003333A1 (de) * | 2000-01-27 | 2001-08-09 | Jakob Reuter | Nutzung von Glasfasern und anderen Leitern des Lichtes mit Lichtempfänger als Sensoren für Meldung des Kontaktes mit irgendeinem Objekt und Erfassung mit Hilfe der Software auf einem PC |
| AUPR316901A0 (en) * | 2001-02-16 | 2001-03-15 | Future Fibre Technologies Pty Ltd | Optic communication system |
| AUPR357801A0 (en) * | 2001-03-07 | 2001-04-05 | Future Fibre Technologies Pty Ltd | Perimeter security system and perimeter monitoring method |
| US6934426B2 (en) | 2002-10-09 | 2005-08-23 | Senstar-Stellar Corporation | Fiber optic security sensor and system with integrated secure data transmission and power cables |
| US7376293B2 (en) | 2003-07-18 | 2008-05-20 | Network Intergrity Systems Inc. | Remote location of active section of fiber in a multimode intrusion detection system |
| CA2529654C (en) | 2003-07-18 | 2012-04-03 | Network Integrity Systems Inc. | Multimode fiber optic intrusion detection system |
| US7403675B2 (en) | 2003-07-18 | 2008-07-22 | Network Integrity Systems Inc. | Method of high order mode excitation for multimode intrusion detection |
| US7403674B2 (en) | 2003-07-18 | 2008-07-22 | Network Integrity Systems Inc. | Intrusion detection system for a multimode optical fiber using a bulk optical wavelength division multiplexer for maintaining modal power distribution |
| US7142736B2 (en) * | 2004-01-05 | 2006-11-28 | Optellios, Inc. | Distributed fiber sensor with interference detection and polarization state management |
| GB2409942A (en) * | 2004-01-12 | 2005-07-13 | Radiodetection Ltd | Optical time domain reflectometry with non-intrusive modulators |
| US7155075B2 (en) * | 2004-03-29 | 2006-12-26 | General Electric Company | Optical battery temperature monitoring system and method |
| CA2467898A1 (en) * | 2004-05-21 | 2005-11-21 | Pure Technologies Ltd. | Fiber optic sensor method and apparatus |
| US7139476B2 (en) * | 2004-06-15 | 2006-11-21 | Optellios, Inc. | Distributed fiber sensor with detection and signal processing using polarization state management |
| US8395782B2 (en) * | 2004-06-15 | 2013-03-12 | Optellios, Inc. | Detection and location of boundary intrusion, using composite variables derived from phase measurements |
| WO2008027959A2 (en) * | 2006-08-31 | 2008-03-06 | Optellios, Inc | Detection and location of boundary intrusion, using composite variables derived from phase measurements |
| US7136550B2 (en) * | 2004-10-28 | 2006-11-14 | Corning Incorporated | Single-fiber launch/receive system for biosensing applications |
| EP2071374B1 (en) | 2005-01-11 | 2016-12-14 | Future Fibre Technologies Pty Ltd | Apparatus and method for using a counter-propagating signal method for locating events |
| US7499176B2 (en) * | 2007-02-13 | 2009-03-03 | Future Fibre Technologies Pty Ltd | Apparatus and method for using a counter-propagating signal method for locating events |
| US20070069893A1 (en) * | 2005-03-04 | 2007-03-29 | Compudyne Corporation | Polarization-based sensor for secure fiber optic network and other security applications |
| US7514670B2 (en) * | 2005-08-29 | 2009-04-07 | Fiber Sensys Llc | Distributed fiber optic sensor with location capability |
| US8194238B1 (en) * | 2006-02-14 | 2012-06-05 | Killdeer Mountain Manufacturing, Inc. | Optical sensor component identification and interrogation system |
| US7450006B1 (en) * | 2006-04-06 | 2008-11-11 | Doyle Alan T | Distributed perimeter security threat confirmation |
| US7688202B1 (en) | 2006-04-06 | 2010-03-30 | Kelly Research Corp. | Distributed perimeter security threat determination |
| CN100460914C (zh) * | 2006-06-30 | 2009-02-11 | 中国石油天然气集团公司 | 光纤安全预警光路系统 |
| CN101098195B (zh) * | 2006-06-30 | 2011-10-05 | 中国石油天然气集团公司 | 光纤安全预警系统 |
| WO2008011058A2 (en) * | 2006-07-19 | 2008-01-24 | Fiber Sensys Llc. | Fiber-optic mat sensor |
| GB2443661B (en) * | 2006-11-08 | 2011-08-31 | Polarmetrix Ltd | Detecting a disturbance in the phase of light propogating in an optical waveguide |
| GB2445364B (en) | 2006-12-29 | 2010-02-17 | Schlumberger Holdings | Fault-tolerant distributed fiber optic intrusion detection |
| US8704662B2 (en) * | 2007-04-02 | 2014-04-22 | Future Fibre Technologies Pty Ltd | Method and apparatus for monitoring a structure |
| US20090080898A1 (en) * | 2007-09-24 | 2009-03-26 | Fiber Sensys Llc | Method and apparatus for reducing noise in a fiber-optic sensor |
| CN101277151B (zh) * | 2008-05-16 | 2012-08-29 | 苏州市盛信光纤传感科技有限公司 | 一种基于波分复用的光纤传感系统 |
| US20100277720A1 (en) * | 2008-09-17 | 2010-11-04 | Daniel Hammons | Virtual fence system and method |
| CN101738385B (zh) * | 2008-11-24 | 2011-09-21 | 周礼君 | 管状波导式等离子体激元共振感测装置及感测系统 |
| US8121442B2 (en) * | 2008-12-24 | 2012-02-21 | At&T Intellectual Property I, L.P. | Optical fiber surveillance topology |
| US8144333B2 (en) * | 2009-09-29 | 2012-03-27 | At&T Intellectual Property I, L.P. | Optical fiber structure monitoring and analysis |
| EP2598855B1 (en) | 2010-08-19 | 2016-03-23 | Halliburton Energy Services, Inc. | Optical pressure sensor |
| CA2813869C (en) | 2010-10-14 | 2016-05-17 | Fiber Sensys, Inc. | Interferometer systems |
| CN101969344B (zh) * | 2010-10-15 | 2014-01-08 | 复旦大学 | 基于光纤光弹效应的大区域声音监听系统 |
| US8316712B2 (en) | 2010-11-19 | 2012-11-27 | Margan Physical Diagnostics Ltd. | Quantitative acoustic emission non-destructive inspection for revealing, typifying and assessing fracture hazards |
| CA2819157A1 (en) * | 2011-01-20 | 2012-07-26 | Omnisens Sa | A strain sensor apparatus and method of strain sensing |
| US9183713B2 (en) | 2011-02-22 | 2015-11-10 | Kelly Research Corp. | Perimeter security system |
| WO2012135103A2 (en) * | 2011-03-25 | 2012-10-04 | Ohio University | Security system for underground conduit |
| GB201203273D0 (en) * | 2012-02-24 | 2012-04-11 | Qinetiq Ltd | Monitoring transport network infrastructure |
| RU2490698C1 (ru) * | 2012-03-19 | 2013-08-20 | Общество С Ограниченной Ответственностью "Научно-Технологический Центр Информационной Физики "Интрофизика" | Многоканальное оптоволоконное соединение |
| GB2503694A (en) * | 2012-07-04 | 2014-01-08 | Stingray Geophysical Ltd | Optical monitoring system |
| DE102013201626A1 (de) * | 2013-01-31 | 2014-07-31 | Siemens Aktiengesellschaft | Anordnung mit einer linear strukturierten Einrichtung und Verfahren zum Betreiben dieser Einrichtung |
| GB2513399B (en) * | 2013-04-26 | 2017-07-26 | Optasense Holdings Ltd | Traffic Monitoring |
| CN107850483A (zh) * | 2015-06-04 | 2018-03-27 | 未来光纤技术私人有限公司 | 用于测量地面中的振动的系统和方法 |
| CN105069950B (zh) * | 2015-08-19 | 2017-08-25 | 长飞光纤光缆股份有限公司 | 一种光纤周界安防设备及确定光纤周界入侵信号的方法 |
| CN105096490B (zh) * | 2015-09-02 | 2020-12-25 | 同方威视技术股份有限公司 | 分布式光纤周界安防系统、声音还原系统及方法 |
| FR3054663B1 (fr) * | 2016-07-28 | 2018-09-07 | Stmicroelectronics (Crolles 2) Sas | Procede de caracterisation de dispositifs photoniques, et dispositif associe. |
| CN106643838A (zh) * | 2016-12-01 | 2017-05-10 | 北京航天控制仪器研究所 | 一种基于光纤环双向探测的撞击部位测量系统和方法 |
| US10337935B2 (en) * | 2016-12-12 | 2019-07-02 | Sikorsky Aircraft Corporation | Systems and methods for integrated, multi-functional, fault tolerant sensing and communication |
| CN107664515A (zh) * | 2017-08-24 | 2018-02-06 | 武汉孚晟科技有限公司 | 一种光纤周界传感定位系统及入侵扰动点位置的判定方法 |
| EP3677874A1 (en) * | 2019-01-02 | 2020-07-08 | Nokia Technologies Oy | Detecting non-uniformities in an optical fibre |
| US20220399938A1 (en) * | 2019-12-04 | 2022-12-15 | Nec Corporation | Optical fiber sensing system, relay device, and sensing method |
| RU2765693C1 (ru) * | 2020-09-28 | 2022-02-02 | Акционерное Общество "Институт "Оргэнергострой" | Ограждение со средством для обнаружения подкопа с линейной частью с совместными интерферометрами |
| US11650340B2 (en) | 2020-12-01 | 2023-05-16 | Nokia Solutions And Networks Oy | Detection of seismic disturbances using optical fibers |
| CN117170156B (zh) * | 2023-11-03 | 2024-02-09 | 赛丽科技(苏州)有限公司 | 含反向耦合器的光学相控阵芯片、系统与校准方法 |
Family Cites Families (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56150323A (en) * | 1980-04-23 | 1981-11-20 | Nec Corp | Orientating system for fault point of optical fiber |
| US5026141A (en) * | 1981-08-24 | 1991-06-25 | G2 Systems Corporation | Structural monitoring system using fiber optics |
| US5363463A (en) | 1982-08-06 | 1994-11-08 | Kleinerman Marcos Y | Remote sensing of physical variables with fiber optic systems |
| JPS6014137A (ja) * | 1983-07-05 | 1985-01-24 | Nec Corp | 光フアイバ破断点標定方式 |
| JPS60169774A (ja) * | 1984-02-13 | 1985-09-03 | Sumitomo Electric Ind Ltd | ケ−ブル絶縁不良点の活線下標定方法 |
| JPS60169775A (ja) | 1984-02-14 | 1985-09-03 | Sumitomo Electric Ind Ltd | 送電線の故障点標定装置 |
| US5311592A (en) * | 1986-06-11 | 1994-05-10 | Mcdonnell Douglas Corporation | Sagnac interferometer based secure communication system |
| GB2204204B (en) * | 1987-01-03 | 1990-10-31 | Plessey Co Plc | Improvements relating to optical detection systems |
| US5455698A (en) | 1989-12-27 | 1995-10-03 | Mcdonnell Douglas Corporation | Secure communication alarm system |
| TW221312B (ru) | 1991-06-27 | 1994-02-21 | Eastman Kodak Co | |
| JPH05297052A (ja) * | 1992-04-21 | 1993-11-12 | Furukawa Electric Co Ltd:The | 電力ケーブルの事故点標定方法 |
| US5356220A (en) * | 1992-05-29 | 1994-10-18 | Kawasaki Steel Corporation | Method and apparatus for monitoring temperature of blast furnace and temperature control system using temperature monitoring apparatus |
| US5355208A (en) | 1992-06-24 | 1994-10-11 | Mason & Hanger National, Inc. | Distributed fiber optic sensor for locating and identifying remote disturbances |
| JPH0614137A (ja) | 1992-06-24 | 1994-01-21 | Canon Inc | 情報処理装置 |
| JPH0658712A (ja) * | 1992-08-11 | 1994-03-04 | Fujikura Ltd | 光ファイバセンサ |
| US5402231A (en) * | 1992-08-24 | 1995-03-28 | Mcdonnell Douglas Corporation | Distributed sagnac sensor systems |
| JP3114426B2 (ja) * | 1993-04-23 | 2000-12-04 | 日立電線株式会社 | 光伝送路型センサ |
| US5448058A (en) * | 1993-04-27 | 1995-09-05 | Litton Systems, Inc. | Optical signal detection apparatus and method for preventing polarization signal fading in optical fiber interferometric sensor systems |
| US5493113A (en) * | 1994-11-29 | 1996-02-20 | United Technologies Corporation | Highly sensitive optical fiber cavity coating removal detection |
| US5627637A (en) * | 1995-02-24 | 1997-05-06 | Kapteyn; Kelvin L. | Fully distributed optical fiber strain sensor |
| US5636021A (en) * | 1995-06-02 | 1997-06-03 | Udd; Eric | Sagnac/Michelson distributed sensing systems |
| JP3759798B2 (ja) * | 1996-11-15 | 2006-03-29 | 財団法人電力中央研究所 | 落雷点標定方法 |
| JPH10281923A (ja) * | 1997-04-10 | 1998-10-23 | Mitsubishi Heavy Ind Ltd | 配管損傷検出方法および装置 |
| US5778114A (en) | 1997-04-18 | 1998-07-07 | Eslambolchi; Hossein | Fiber analysis method and apparatus |
| AUPQ012699A0 (en) * | 1999-05-03 | 1999-05-27 | Future Fibre Technologies Pty Ltd | Intrinsic securing of fibre optic communication links |
| AUPP780898A0 (en) * | 1998-12-18 | 1999-01-21 | Future Fibre Technologies Pty Ltd | Counter-propagating signal method for locating events in fibre optic sensor systems |
-
1999
- 1999-11-19 JP JP2000589935A patent/JP4869480B2/ja not_active Expired - Lifetime
- 1999-11-19 CA CA002355091A patent/CA2355091C/en not_active Expired - Lifetime
- 1999-11-19 WO PCT/AU1999/001028 patent/WO2000037925A1/en not_active Application Discontinuation
- 1999-11-19 RU RU2001119999/28A patent/RU2226270C2/ru active
- 1999-11-19 IL IL14294399A patent/IL142943A/en not_active IP Right Cessation
- 1999-11-19 CN CNB998143758A patent/CN1179205C/zh not_active Expired - Lifetime
- 1999-11-19 KR KR1020017007497A patent/KR100715589B1/ko active IP Right Grant
- 1999-11-19 US US09/857,340 patent/US6621947B1/en not_active Expired - Lifetime
- 1999-11-19 AU AU15369/00A patent/AU747525B2/en not_active Expired
-
2003
- 2003-04-29 US US10/426,114 patent/US6778717B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| IL142943A0 (en) | 2002-04-21 |
| KR100715589B1 (ko) | 2007-05-10 |
| JP4869480B2 (ja) | 2012-02-08 |
| WO2000037925A1 (en) | 2000-06-29 |
| CA2355091C (en) | 2007-04-10 |
| RU2226270C2 (ru) | 2004-03-27 |
| CA2355091A1 (en) | 2000-06-29 |
| US6778717B2 (en) | 2004-08-17 |
| JP2002533672A (ja) | 2002-10-08 |
| KR20010101239A (ko) | 2001-11-14 |
| CN1330769A (zh) | 2002-01-09 |
| AU747525B2 (en) | 2002-05-16 |
| CN1179205C (zh) | 2004-12-08 |
| US6621947B1 (en) | 2003-09-16 |
| AU1536900A (en) | 2000-07-12 |
| US20030198425A1 (en) | 2003-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU747525B2 (en) | Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events | |
| AU760272B2 (en) | Intrinsic securing of fibre optic communication links | |
| CN105865752B (zh) | 采用分布式偏振串扰分析仪全面评判保偏光纤特性的方法和装置 | |
| EP3797269B1 (en) | Distributed optical fibre vibration sensor | |
| CA2198593C (en) | Optical sensors and method for producing fibre optic modalmetric sensors | |
| Yao et al. | Fiber optical intensity sensors | |
| EP3475662B1 (en) | Calibration device for distributing sensing technologies | |
| IL146075A (en) | Intrinsic security of fiber optic communication links | |
| Alasaarela et al. | Comparison of distributed fiber optic sensing methods for location and quantity information measurements | |
| US5067815A (en) | Optical sensor with intermodal interferometry | |
| ZA200103762B (en) | Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events. | |
| EP1151279A1 (en) | Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events | |
| Maneke et al. | Measurement of Signal Losses in Optical Fibre Cables under Vibration using Optical Time–Domain Reflectometer (OTDR) | |
| JPH02176535A (ja) | 光線路監視装置 | |
| AU688113B2 (en) | Optical sensors and method for producing fibre optic modalmetric sensors | |
| Bravo et al. | Remote‐Time Division Multiplexing of Bending Sensors Using a Broadband Light Source | |
| Chen et al. | Distributed transverse stress measurement of an optical fiber using polarimetric OFDR | |
| Durak et al. | Precise optical fiber length measurement system based on Fresnel reflection | |
| Zyczkowski et al. | Preparation and characterization WDM technique for linear disturbance localization in fibre optical sensor | |
| Huang | Quasi-distributed intrinsic Fabry-Perot interferometric fiber sensor for temperature and strain sensing | |
| Tapanes et al. | Practical Applications of Fibre Optic Sensors to Engineered Structures for Real-Time, Nondestructive Evaluation Using a Composite Materials Patch | |
| Elzein | An application on optical backscattering reflectometer OBR | |
| Park | A study of fiber optic intrusion sensor | |
| Bravo Acha et al. | Remote-time division multiplexing of bending sensors using a broadband light source | |
| May | Measuring with Light Part 2: Fiber-Optic Sensing-From Theory to Practice |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Patent granted | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| EXP | Patent expired |