DE69923783D1 - Drucksensor mit bragg-gitter - Google Patents

Drucksensor mit bragg-gitter

Info

Publication number
DE69923783D1
DE69923783D1 DE69923783T DE69923783T DE69923783D1 DE 69923783 D1 DE69923783 D1 DE 69923783D1 DE 69923783 T DE69923783 T DE 69923783T DE 69923783 T DE69923783 T DE 69923783T DE 69923783 D1 DE69923783 D1 DE 69923783D1
Authority
DE
Germany
Prior art keywords
pressure sensor
grille
bragg
bragg grille
sensor
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 - Lifetime
Application number
DE69923783T
Other languages
English (en)
Inventor
R Fernald
J Bailey
B Miller
M Sullivan
R Dunphy
A Davis
D Kersey
J Wright
A Putnam
N Brucato
E Sanders
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weatherford Lamb Inc
Original Assignee
Weatherford Lamb Inc
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 Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Application granted granted Critical
Publication of DE69923783D1 publication Critical patent/DE69923783D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
    • G01L11/025—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means using a pressure-sensitive optical fibre
DE69923783T 1998-12-04 1999-12-06 Drucksensor mit bragg-gitter Expired - Lifetime DE69923783D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US20594498A 1998-12-04 1998-12-04
US39940499A 1999-09-20 1999-09-20
PCT/US1999/028868 WO2000037914A2 (en) 1998-12-04 1999-12-06 Bragg grating pressure sensor

Publications (1)

Publication Number Publication Date
DE69923783D1 true DE69923783D1 (de) 2005-03-24

Family

ID=26900900

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69923783T Expired - Lifetime DE69923783D1 (de) 1998-12-04 1999-12-06 Drucksensor mit bragg-gitter

Country Status (6)

Country Link
US (1) US6422084B1 (de)
EP (1) EP1137920B1 (de)
JP (1) JP4615726B2 (de)
CA (1) CA2353567C (de)
DE (1) DE69923783D1 (de)
WO (1) WO2000037914A2 (de)

Families Citing this family (124)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69927274T2 (de) * 1998-06-26 2006-06-22 Cidra Corp., Wallingford Nichtintrusiver faseroptischer drucksensor zur messung von druckänderungen in einem rohr
US6982996B1 (en) 1999-12-06 2006-01-03 Weatherford/Lamb, Inc. Large diameter optical waveguide, grating, and laser
US6597711B2 (en) * 1998-12-04 2003-07-22 Cidra Corporation Bragg grating-based laser
JP4585091B2 (ja) * 1999-08-19 2010-11-24 三菱電機株式会社 導波路グレーティングデバイス
US20030215185A1 (en) * 1999-12-06 2003-11-20 Cidra Corporation, Large diameter optical waveguide having long period grating therein
WO2001059419A1 (en) * 2000-02-11 2001-08-16 Rosemount Inc. Optical pressure sensor
US6546170B1 (en) * 2000-03-06 2003-04-08 Arroyo Optics, Inc. Devices and methods for reducing dispersion in optical communications
EP1179727A1 (de) * 2000-08-02 2002-02-13 Abb Research Ltd. Faser-Bragg-Gitter Sensor zur Druck- und Dichtemessung
NO315762B1 (no) * 2000-09-12 2003-10-20 Optoplan As Sand-detektor
US6453108B1 (en) 2000-09-30 2002-09-17 Cidra Corporation Athermal bragg grating package with course and fine mechanical tuning
US6681067B1 (en) 2000-11-03 2004-01-20 Cidra Corporation Method for selective erasing/apodization of the index of refraction of an optical waveguide and an optical waveguide modified by the method
WO2002037625A2 (en) * 2000-11-06 2002-05-10 Cidra Corporation Compression-tuned bragg grating-based laser
US6622558B2 (en) * 2000-11-30 2003-09-23 Orbital Research Inc. Method and sensor for detecting strain using shape memory alloys
US6523414B1 (en) * 2001-04-16 2003-02-25 Zevex, Inc. Optical pressure monitoring system
AU2002324445A1 (en) * 2001-06-12 2002-12-23 Nufern Compression-tunable fiber laser and compression-resistant optical fiber for lasers
US6915048B2 (en) 2001-06-18 2005-07-05 Cidra Corporation Fabry-perot filter/resonator
US6898338B2 (en) * 2001-06-18 2005-05-24 Weatherford/Lamb, Inc. Fabry-Perot sensing element based on a large-diameter optical waveguide
US6947637B2 (en) * 2001-08-09 2005-09-20 Corning Incorporated Measurement of fiber strain during processing
AUPR702401A0 (en) * 2001-08-15 2001-09-06 Jds Uniphase Pty Ltd Method of turning in-fibre grating
US20050233770A1 (en) * 2002-02-06 2005-10-20 Ramsey Craig C Wireless substrate-like sensor
US20050224899A1 (en) * 2002-02-06 2005-10-13 Ramsey Craig C Wireless substrate-like sensor
US20050224902A1 (en) * 2002-02-06 2005-10-13 Ramsey Craig C Wireless substrate-like sensor
US6644111B2 (en) * 2002-02-15 2003-11-11 The United States Of America As Represented By The Secretary Of The Army Apparatus and method for measuring exit velocity of a gun round
US20030225379A1 (en) * 2002-02-19 2003-12-04 Medamicus, Inc. Composite stasis valve
DE10235542A1 (de) * 2002-08-03 2004-07-22 Arzneimittel Gmbh Apotheker Vetter & Co. Ravensburg Verfahren zur kontinuierlichen Messung, Erfassung und Regelung des Stützdrucks sowie Vorrichtung zur Durchführung des Verfahrens
US7178600B2 (en) * 2002-11-05 2007-02-20 Weatherford/Lamb, Inc. Apparatus and methods for utilizing a downhole deployment valve
US7451809B2 (en) * 2002-10-11 2008-11-18 Weatherford/Lamb, Inc. Apparatus and methods for utilizing a downhole deployment valve
US7219729B2 (en) * 2002-11-05 2007-05-22 Weatherford/Lamb, Inc. Permanent downhole deployment of optical sensors
US7255173B2 (en) 2002-11-05 2007-08-14 Weatherford/Lamb, Inc. Instrumentation for a downhole deployment valve
US7350590B2 (en) * 2002-11-05 2008-04-01 Weatherford/Lamb, Inc. Instrumentation for a downhole deployment valve
US7413018B2 (en) * 2002-11-05 2008-08-19 Weatherford/Lamb, Inc. Apparatus for wellbore communication
US7095910B2 (en) * 2003-01-31 2006-08-22 Honeywell International, Inc. Wavelength division multiplexing coupling device
US6931188B2 (en) * 2003-02-21 2005-08-16 Weatherford/Lamb, Inc. Side-hole cane waveguide sensor
US7004911B1 (en) 2003-02-24 2006-02-28 Hosheng Tu Optical thermal mapping for detecting vulnerable plaque
US7047816B2 (en) * 2003-03-21 2006-05-23 Weatherford/Lamb, Inc. Optical differential pressure transducer utilizing a bellows and flexure system
US6955085B2 (en) * 2003-06-02 2005-10-18 Weatherford/Lamb, Inc. Optical accelerometer or displacement device using a flexure system
US7129470B2 (en) * 2003-06-04 2006-10-31 Weatherford/Lamb, Inc. Optical sensor using a long period grating suitable for dynamic interrogation
US20040252748A1 (en) * 2003-06-13 2004-12-16 Gleitman Daniel D. Fiber optic sensing systems and methods
US20040263857A1 (en) * 2003-06-24 2004-12-30 Basavanhally Nagesh R. Fiber-optic gauge having one or more side-mounted sensors
US7245382B2 (en) * 2003-10-24 2007-07-17 Optoplan As Downhole optical sensor system with reference
US7199869B2 (en) * 2003-10-29 2007-04-03 Weatherford/Lamb, Inc. Combined Bragg grating wavelength interrogator and Brillouin backscattering measuring instrument
US7017417B2 (en) * 2004-02-10 2006-03-28 Weatherford/Lamb, Inc. Pressure sensor assembly suitable for use in harsh environments
US7492463B2 (en) 2004-04-15 2009-02-17 Davidson Instruments Inc. Method and apparatus for continuous readout of Fabry-Perot fiber optic sensor
DE102004036545B3 (de) * 2004-07-28 2006-03-16 Infineon Technologies Ag Integrierter Halbleiterspeicher mit redundanten Speicherzellen
BRPI0403786A (pt) * 2004-09-09 2006-05-02 Petroleo Brasileiro Sa transdutor de pressão diferencial a fibra óptica
AU2005289365B2 (en) * 2004-09-28 2011-07-07 Thales Australia Limited Opto-acoustic pressure sensor
KR20070083887A (ko) * 2004-09-28 2007-08-24 탈레스 언더워터 시스템즈 피티와이 리미티드 음압센서
US7264404B2 (en) * 2004-10-29 2007-09-04 Weatherford/Lamb, Inc. Optical connector assembly
EP2194485B1 (de) 2004-11-16 2012-10-17 Illumina, Inc. Verfahren und Vorrichtung zum Auslesen kodierter Mikroperlen
EP1674833A3 (de) 2004-12-21 2007-05-30 Davidson Instruments, Inc. Faseroptisches Sensorsystem
US7835598B2 (en) 2004-12-21 2010-11-16 Halliburton Energy Services, Inc. Multi-channel array processor
US7302123B2 (en) * 2005-03-10 2007-11-27 Weatherford/Lamb, Inc. Dynamic optical waveguide sensor
US20060274323A1 (en) 2005-03-16 2006-12-07 Gibler William N High intensity fabry-perot sensor
US8496647B2 (en) 2007-12-18 2013-07-30 Intuitive Surgical Operations, Inc. Ribbed force sensor
US8317723B2 (en) 2006-02-23 2012-11-27 Uvic Industry Partnerships Inc. Pressure sensor for biological fluids and use thereof
WO2007126491A2 (en) * 2006-03-31 2007-11-08 Davidson Instruments, Inc. Differential pressure transducer configurations including displacement sensor
US20070234789A1 (en) * 2006-04-05 2007-10-11 Gerard Glasbergen Fluid distribution determination and optimization with real time temperature measurement
US7830575B2 (en) 2006-04-10 2010-11-09 Illumina, Inc. Optical scanner with improved scan time
US7684051B2 (en) * 2006-04-18 2010-03-23 Halliburton Energy Services, Inc. Fiber optic seismic sensor based on MEMS cantilever
US7743661B2 (en) 2006-04-26 2010-06-29 Halliburton Energy Services, Inc. Fiber optic MEMS seismic sensor with mass supported by hinged beams
US7310456B1 (en) * 2006-06-02 2007-12-18 Baker Hughes Incorporated Multi-core optical fiber pressure sensor
US7664347B2 (en) 2006-06-07 2010-02-16 Baker Hughes Incorporated Multi-core optical fiber sensor
US8115937B2 (en) 2006-08-16 2012-02-14 Davidson Instruments Methods and apparatus for measuring multiple Fabry-Perot gaps
WO2008042199A2 (en) 2006-09-29 2008-04-10 Cyberoptics Semiconductor, Inc. Particles sensor integrated with substrate
GB0620339D0 (en) * 2006-10-12 2006-11-22 Insensys Ltd Pressure rod
US8417084B2 (en) * 2007-01-16 2013-04-09 Baker Hughes Incorporated Distributed optical pressure and temperature sensors
US7840102B2 (en) 2007-01-16 2010-11-23 Baker Hughes Incorporated Distributed optical pressure and temperature sensors
WO2008091645A1 (en) 2007-01-24 2008-07-31 Davidson Energy Transducer for measuring environmental parameters
SA08290691B1 (ar) * 2007-10-31 2012-02-22 شل انترناشيونال ريسيرش ماتشابيج بى . فى تجميعة جهاز استشعار ضغط وطريقة لاستخدام التجميعة
US8561473B2 (en) 2007-12-18 2013-10-22 Intuitive Surgical Operations, Inc. Force sensor temperature compensation
EP2072986B1 (de) * 2007-12-18 2016-08-10 Services Pétroliers Schlumberger Vorrichtung und Verfahren zur Druckmessung
US7903907B1 (en) 2008-04-10 2011-03-08 Intelligent Fiber Optic Systems, Inc. Force and deflection sensor with shell membrane and optical gratings and method of manufacture
US8672539B2 (en) 2008-06-12 2014-03-18 Halliburton Energy Services, Inc. Multiple sensor fiber optic sensing system
CA2744255C (en) 2008-11-19 2017-07-11 The Australian National University A system, device and method for detecting seismic acceleration
US8491574B2 (en) * 2009-03-30 2013-07-23 Intuitive Surgical Operations, Inc. Polarization and temperature insensitive surgical instrument force transducer
JP5402202B2 (ja) * 2009-04-20 2014-01-29 沖電気工業株式会社 ファイバブラッググレーティング装置
CA2790841C (en) 2009-04-22 2014-05-27 Lxdata Inc. Pressure sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation
US8087477B2 (en) * 2009-05-05 2012-01-03 Baker Hughes Incorporated Methods and apparatuses for measuring drill bit conditions
FR2946141B1 (fr) 2009-05-29 2011-09-30 Ixsea Hydrophone a fibre a reseau de bragg avec amplificateur a soufflet
FR2946140B1 (fr) * 2009-05-29 2011-12-09 Ixsea Hydrophone a fibre a reseau de bragg avec amplificateur a membrane
WO2011042023A1 (en) * 2009-10-05 2011-04-14 Nkt Flexibles I/S A flexible unbonded oil pipe system with an optical fiber sensor inside
US9388686B2 (en) 2010-01-13 2016-07-12 Halliburton Energy Services, Inc. Maximizing hydrocarbon production while controlling phase behavior or precipitation of reservoir impairing liquids or solids
WO2011120147A1 (en) 2010-03-30 2011-10-06 University Of Victoria Innovation And Development Corporation Multi-point pressure sensor and uses thereof
US8505625B2 (en) 2010-06-16 2013-08-13 Halliburton Energy Services, Inc. Controlling well operations based on monitored parameters of cement health
US8879067B2 (en) 2010-09-01 2014-11-04 Lake Shore Cryotronics, Inc. Wavelength dependent optical force sensing
CN102012290B (zh) * 2010-10-09 2012-10-10 中国计量学院 基于倾斜光纤光栅的横向压力传感器及其解调方法
US8636063B2 (en) 2011-02-16 2014-01-28 Halliburton Energy Services, Inc. Cement slurry monitoring
US9075155B2 (en) 2011-04-08 2015-07-07 Halliburton Energy Services, Inc. Optical fiber based downhole seismic sensor systems and methods
US9127532B2 (en) 2011-09-07 2015-09-08 Halliburton Energy Services, Inc. Optical casing collar locator systems and methods
US9127531B2 (en) 2011-09-07 2015-09-08 Halliburton Energy Services, Inc. Optical casing collar locator systems and methods
US9297767B2 (en) 2011-10-05 2016-03-29 Halliburton Energy Services, Inc. Downhole species selective optical fiber sensor systems and methods
JP5826645B2 (ja) 2012-01-23 2015-12-02 株式会社豊田自動織機 温度センサ用光ファイバおよび電力装置監視システム
WO2013134575A1 (en) * 2012-03-07 2013-09-12 Ofs Fitel, Llc Grating-based sensor
US10060250B2 (en) 2012-03-13 2018-08-28 Halliburton Energy Services, Inc. Downhole systems and methods for water source determination
US20130272656A1 (en) * 2012-04-11 2013-10-17 O/E Land Inc. Double-Sided Compression-Tuned Fiber Bragg Grating
EP2703797A1 (de) * 2012-08-30 2014-03-05 Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO Druckmessanordnung
US10197752B2 (en) * 2013-02-22 2019-02-05 Weatherford Technology Holdings, Llc Monolithic multi-optical-waveguide penetrator or connector
KR101815006B1 (ko) 2013-05-13 2018-01-09 삼성전자주식회사 광 도파로를 이용한 벤딩 및 접촉 측정 장치 및 방법
RU2530467C1 (ru) * 2013-07-09 2014-10-10 Общество с ограниченной ответственностью "ФИРМА ПОДИЙ" ООО "ФИРМА ПОДИЙ" Тензометрический датчик
US20150036968A1 (en) * 2013-07-30 2015-02-05 Halliburton Energy Services, Inc. Improved optical fiber feedthrough incorporating fiber bragg grating
WO2015020674A1 (en) 2013-08-09 2015-02-12 Halliburton Energy Services, Inc. Improved optical fiber feedthrough incorporating fiber bragg grating
NL1040338C2 (en) * 2013-08-16 2015-02-19 Beethoven Marine Systems B V Sensor for detecting pressure waves in a liquid.
CN103529270B (zh) * 2013-09-26 2017-01-11 石家庄经济学院 一种基于制冷片的光纤光栅电流传感器及其检测方法
NL1040505C2 (en) * 2013-11-19 2015-05-26 Beethoven Marine Systems B V Sensor for detecting pressure waves in a fluid, provided with static pressure compensation.
US9341532B2 (en) 2014-03-24 2016-05-17 General Electric Company Systems and methods for distributed pressure sensing
NL1040788B1 (en) * 2014-05-01 2016-07-13 Fugro Tech Bv Optical fiber sensor assembly.
RU2571448C1 (ru) * 2014-08-05 2015-12-20 Открытое акционерное общество "Научно-исследовательский институт физических измерений" Микромеханический волоконно-оптический датчик давления
KR102277902B1 (ko) * 2014-09-05 2021-07-15 삼성전자주식회사 피검체 접촉압력 측정기와 그 제조 및 측정방법
RU2570109C1 (ru) * 2014-09-26 2015-12-10 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") Способ закрепления оптического волокна с брэгговской решеткой
US9952067B2 (en) 2015-05-06 2018-04-24 Kulite Semiconductor Products, Inc. Systems and methods for optical measurements using multiple beam interferometric sensors
US9810594B2 (en) 2015-01-08 2017-11-07 Kulite Semiconductor Products, Inc. Thermally stable high temperature pressure and acceleration optical interferometric sensors
US10545166B2 (en) * 2015-05-08 2020-01-28 Fugro Technology B.V. Optical sensor device, sensor apparatus and cable comprising such device
EP3311130A4 (de) * 2015-06-18 2019-04-17 Multicore Photonics, Inc. Faseroptische druckvorrichtung, verfahren und anwendungen
CN105004459B (zh) * 2015-07-22 2017-06-20 哈尔滨工业大学 高灵敏度分布式的横向压力传感器及利用该传感器测量横向压力的方法
NL2015952B1 (en) * 2015-12-11 2017-07-03 Fugro Tech Bv Pressure sensor and sensor system comprising one or more pressure sensors.
US10370956B2 (en) * 2016-02-18 2019-08-06 Weatherford Technology Holdings, Llc Pressure gauge insensitive to extraneous mechanical loadings
KR101797709B1 (ko) 2016-02-25 2017-11-14 주식회사 지엔큐 온도 보상형 광섬유 센서 시스템
RU2628734C1 (ru) * 2016-11-09 2017-08-21 Акционерное общество "Научно-исследовательский институт физических измерений" Волоконно-оптический датчик давления
CA3066288C (en) * 2017-06-12 2023-09-19 Advanced Opto-Mechanical Systems And Technologies Inc. Multi-parameter distributed fiber optic sensor system and methods of sensor manufacturing
WO2020003053A1 (en) * 2018-06-26 2020-01-02 National Research Council Of Canada Phase-shifted fiber bragg grating sensor and method for producing same
CN113358269B (zh) * 2021-06-15 2022-03-01 青岛海洋科学与技术国家实验室发展中心 孔隙水光纤光栅压差传感器及压力检测装置
CN114088240B (zh) * 2021-10-15 2023-10-31 西安石油大学 冷热伸长型光纤光栅温度传感器
CN114485451A (zh) * 2022-02-16 2022-05-13 河北地质大学 一种高精度的光纤光栅应力应变传感器
US11656140B1 (en) 2022-04-25 2023-05-23 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Coated fiber optic pressure sensor with improved acceleration response

Family Cites Families (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3625062A (en) 1970-08-24 1971-12-07 William A Heske Pressure indicating apparatus
US4444458A (en) 1981-05-26 1984-04-24 Gould Inc. Substrate ruggedized optical fiber apparatus
US4509370A (en) 1982-09-30 1985-04-09 Regents Of The University Of California Pressure-sensitive optrode
US4636031A (en) 1983-10-28 1987-01-13 Chevron Research Company Process of tuning a grated optical fiber and the tuned optical fiber
US4630889A (en) 1983-11-09 1986-12-23 Polaroid Corporation Polarization locked optical fiber and method
DE3587641T2 (de) * 1984-08-13 1994-02-17 United Technologies Corp Verteilter, gemäss raumauflösung aufgestellter dehnungsmesser mit optischer faser.
US4704151A (en) 1985-08-15 1987-11-03 Corning Glass Works Method for drawing fiber optic coupler
US4799949A (en) 1985-08-15 1989-01-24 Corning Glass Works Method of making low loss fiber optic coupler
US4727730A (en) 1986-07-10 1988-03-01 Medex, Inc. Integrated optic system for monitoring blood pressure
US4931076A (en) 1987-08-07 1990-06-05 Corning Incorporated Method of making fiber optic coupler
NL8702012A (nl) 1987-08-28 1989-03-16 Philips Nv Transaktiesysteem bevattende een of meerdere gastheercentrales en een aantal gedistribueerde eindstations, die via een netwerksysteem met enige gastheercentrale koppelbaar zijn, alsmede koncentratiestation en eindstation geschikt voor gebruik in zo een transaktiesysteem en exploitantidentifikatie-element te gebruiken bij zo een eindstation.
US4915467A (en) 1988-09-12 1990-04-10 Corning Incorporated Method of making fiber coupler having integral precision connection wells
US4944187A (en) 1988-12-23 1990-07-31 Rosemount Inc. Multimodulus pressure sensor
US4932263A (en) * 1989-06-26 1990-06-12 General Motors Corporation Temperature compensated fiber optic pressure sensor
US4979972A (en) 1989-07-17 1990-12-25 Corning Incorporated Method of making fiber optic couplers
US5136677A (en) 1989-12-21 1992-08-04 Galileo Electro-Optics Corporation Photorefractive effect in bulk chalcogenide glass and devices made therefrom
US5007705A (en) 1989-12-26 1991-04-16 United Technologies Corporation Variable optical fiber Bragg filter arrangement
US5042898A (en) * 1989-12-26 1991-08-27 United Technologies Corporation Incorporated Bragg filter temperature compensated optical waveguide device
US5113070A (en) * 1991-03-29 1992-05-12 Abb Vetco Gray Inc. Temperature compensator for an optic fiber pressure transducer
US5187983A (en) 1991-09-04 1993-02-23 Universite Du Quebec A Hull Fiber-optic strain gauge manometer
US5235659A (en) 1992-05-05 1993-08-10 At&T Bell Laboratories Method of making an article comprising an optical waveguide
US5202939A (en) 1992-07-21 1993-04-13 Institut National D'optique Fabry-perot optical sensing device for measuring a physical parameter
US6131465A (en) * 1993-07-01 2000-10-17 Wlodarczyk; Marek T. Fiber optic combustion pressure sensors for engine knock and misfire detection
JPH07140336A (ja) 1993-09-22 1995-06-02 Shin Etsu Chem Co Ltd 光導波路
US5367589A (en) 1993-10-22 1994-11-22 At&T Bell Laboratories Optical fiber package
EP0656325B1 (de) 1993-11-29 1999-09-22 AT&T Corp. Verfahren zum Herstellen von Vorformen für optische Fasern
US5399854A (en) 1994-03-08 1995-03-21 United Technologies Corporation Embedded optical sensor capable of strain and temperature measurement using a single diffraction grating
US5512078A (en) 1994-03-24 1996-04-30 Griffin; Stephen E. Apparatus for making linearly tapered bores in quartz tubing with a controlled laser
US5500917A (en) 1994-04-18 1996-03-19 Gould Electronics Inc. Optical assembly/housing for securing optical fiber components, devices and fibers to the same or to mounting fixtures
GB9409033D0 (en) 1994-05-06 1994-06-29 Univ Southampton Optical fibre laser
AUPM547194A0 (en) * 1994-05-06 1994-06-02 University Of Sydney, The Variable property light transmitting device
US5691999A (en) 1994-09-30 1997-11-25 United Technologies Corporation Compression-tuned fiber laser
US5469520A (en) 1994-09-30 1995-11-21 United Technologies Corporation Compression-tuned fiber grating
US5684297A (en) 1994-11-17 1997-11-04 Alcatel Cable Method of detecting and/or measuring physical magnitudes using a distributed sensor
US5511083A (en) 1995-03-02 1996-04-23 United Technologies Corporation Polarized fiber laser source
NO302441B1 (no) 1995-03-20 1998-03-02 Optoplan As Fiberoptisk endepumpet fiber-laser
US5612778A (en) * 1995-10-18 1997-03-18 Harris Corp. Fiber optic sensor for multiple variables
US5745626A (en) 1996-06-20 1998-04-28 Jds Fitel Inc. Method for and encapsulation of an optical fiber
US5757540A (en) * 1996-09-06 1998-05-26 Lucent Technologies Inc. Long-period fiber grating devices packaged for temperature stability
US5841131A (en) 1997-07-07 1998-11-24 Schlumberger Technology Corporation Fiber optic pressure transducers and pressure sensing system incorporating same
WO1998017968A1 (en) * 1996-10-18 1998-04-30 Micron Optics, Inc. A multi-wavelength reference
DE19648403C1 (de) * 1996-11-22 1998-04-02 Thomas Dr Ing Nagel Sensor zur Erfassung von Druck- und/oder Zugkräften
US5767411A (en) 1996-12-31 1998-06-16 Cidra Corporation Apparatus for enhancing strain in intrinsic fiber optic sensors and packaging same for harsh environments
US5892860A (en) * 1997-01-21 1999-04-06 Cidra Corporation Multi-parameter fiber optic sensor for use in harsh environments
US5844667A (en) * 1997-01-28 1998-12-01 Cidra Corporation Fiber optic pressure sensor with passive temperature compensation
DE19724528B4 (de) 1997-06-11 2005-09-15 Institut für Physikalische Hochtechnologie e.V. Temperaturkompensiertes faseroptisches Bragg-Gitter
US5877426A (en) 1997-06-27 1999-03-02 Cidra Corporation Bourdon tube pressure gauge with integral optical strain sensors for measuring tension or compressive strain
NO308050B1 (no) 1997-12-05 2000-07-10 Optoplan As Anordning for registrering av strekk
DE19808222A1 (de) 1998-02-27 1999-09-02 Abb Research Ltd Faser-Bragg-Gitter Drucksensor mit integrierbarem Faser-Bragg-Gitter Temperatursensor
US6018534A (en) 1998-07-13 2000-01-25 E-Tek Dynamics, Inc. Fiber bragg grating DFB-DBR interactive laser and related fiber laser sources
US20050033056A1 (en) 2001-12-21 2005-02-10 Nancy Wong Hydroxylated indole derivatives and uses thereof

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JP4615726B2 (ja) 2011-01-19
WO2000037914A3 (en) 2000-10-26
EP1137920A2 (de) 2001-10-04
EP1137920B1 (de) 2005-02-16
WO2000037914A9 (en) 2001-03-29
WO2000037914A2 (en) 2000-06-29
US6422084B1 (en) 2002-07-23
CA2353567A1 (en) 2000-06-29
CA2353567C (en) 2007-11-20
JP2004506869A (ja) 2004-03-04

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