DE69715455T2 - Anordnung zur erhöhung der mechanischen spannung in inneren faseroptischen sensoren und aufbau für rauhe umgebengen - Google Patents

Anordnung zur erhöhung der mechanischen spannung in inneren faseroptischen sensoren und aufbau für rauhe umgebengen

Info

Publication number
DE69715455T2
DE69715455T2 DE69715455T DE69715455T DE69715455T2 DE 69715455 T2 DE69715455 T2 DE 69715455T2 DE 69715455 T DE69715455 T DE 69715455T DE 69715455 T DE69715455 T DE 69715455T DE 69715455 T2 DE69715455 T2 DE 69715455T2
Authority
DE
Germany
Prior art keywords
construction
increasing
arrangement
optical sensors
fiber optical
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
DE69715455T
Other languages
English (en)
Other versions
DE69715455D1 (de
Inventor
J Maron
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 DE69715455D1 publication Critical patent/DE69715455D1/de
Publication of DE69715455T2 publication Critical patent/DE69715455T2/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
    • 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
    • G01D5/35306—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 an interferometer arrangement
    • G01D5/35309—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 an interferometer arrangement using multiple waves interferometer
    • G01D5/35316—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 an interferometer arrangement using multiple waves interferometer using a Bragg gratings
    • 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
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
    • G01L19/0627—Protection against aggressive medium in general
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
    • G01L19/0627—Protection against aggressive medium in general
    • G01L19/0645—Protection against aggressive medium in general using isolation membranes, specially adapted for protection
DE69715455T 1996-12-31 1997-12-19 Anordnung zur erhöhung der mechanischen spannung in inneren faseroptischen sensoren und aufbau für rauhe umgebengen Expired - Lifetime DE69715455T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/777,271 US5767411A (en) 1996-12-31 1996-12-31 Apparatus for enhancing strain in intrinsic fiber optic sensors and packaging same for harsh environments
PCT/US1997/023980 WO1998029717A1 (en) 1996-12-31 1997-12-19 Apparatus for enhancing strain in intrinsic fiber optic sensors and packaging same for harsh environments

Publications (2)

Publication Number Publication Date
DE69715455D1 DE69715455D1 (de) 2002-10-17
DE69715455T2 true DE69715455T2 (de) 2003-05-28

Family

ID=25109782

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69715455T Expired - Lifetime DE69715455T2 (de) 1996-12-31 1997-12-19 Anordnung zur erhöhung der mechanischen spannung in inneren faseroptischen sensoren und aufbau für rauhe umgebengen

Country Status (10)

Country Link
US (1) US5767411A (de)
EP (1) EP0950170B1 (de)
AR (1) AR008552A1 (de)
AU (1) AU5722098A (de)
CA (1) CA2276449C (de)
CO (1) CO4771128A1 (de)
DE (1) DE69715455T2 (de)
NO (1) NO320490B1 (de)
PE (1) PE30599A1 (de)
WO (1) WO1998029717A1 (de)

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6072567A (en) * 1997-02-12 2000-06-06 Cidra Corporation Vertical seismic profiling system having vertical seismic profiling optical signal processing equipment and fiber Bragg grafting optical sensors
US6074503A (en) 1997-04-22 2000-06-13 Cable Design Technologies, Inc. Making enhanced data cable with cross-twist cabled core profile
US6787758B2 (en) * 2001-02-06 2004-09-07 Baker Hughes Incorporated Wellbores utilizing fiber optic-based sensors and operating devices
US6016702A (en) * 1997-09-08 2000-01-25 Cidra Corporation High sensitivity fiber optic pressure sensor for use in harsh environments
US6058226A (en) * 1997-10-24 2000-05-02 D-Star Technologies Llc Optical fiber sensors, tunable filters and modulators using long-period gratings
US6522797B1 (en) 1998-09-01 2003-02-18 Input/Output, Inc. Seismic optical acoustic recursive sensor system
CA2353567C (en) 1998-12-04 2007-11-20 Cidra Corporation Bragg grating pressure sensor
CN1153054C (zh) 1998-12-04 2004-06-09 塞德拉公司 布拉格光栅压力传感器
US6528239B1 (en) * 1999-01-15 2003-03-04 Sabeus Photonics, Inc. Method of forming a grating in a waveguide
US6222973B1 (en) 1999-01-15 2001-04-24 D-Star Technologies, Inc. Fabrication of refractive index patterns in optical fibers having protective optical coatings
US6148925A (en) 1999-02-12 2000-11-21 Moore; Boyd B. Method of making a conductive downhole wire line system
US6233746B1 (en) 1999-03-22 2001-05-22 Halliburton Energy Services, Inc. Multiplexed fiber optic transducer for use in a well and method
FR2791768B1 (fr) * 1999-04-01 2001-04-20 Commissariat Energie Atomique Extensometre a reseau de bragg et procede de fabrication de cet extensometre
DE19938978A1 (de) * 1999-08-19 2001-02-22 Abb Research Ltd Faseroptischer Drucksensor
US6439055B1 (en) 1999-11-15 2002-08-27 Weatherford/Lamb, Inc. Pressure sensor assembly structure to insulate a pressure sensing device from harsh environments
AU782553B2 (en) * 2000-01-05 2005-08-11 Baker Hughes Incorporated Method of providing hydraulic/fiber conduits adjacent bottom hole assemblies for multi-step completions
US6626043B1 (en) * 2000-01-31 2003-09-30 Weatherford/Lamb, Inc. Fluid diffusion resistant glass-encased fiber optic sensor
KR100368122B1 (ko) * 2000-05-04 2003-01-15 병 호 이 반사대역폭이 외부 인가 스트레인에 따라 변하는 처핑된 광섬유 격자 센서 및 이를 이용한 스트레인 측정 장치
US6601671B1 (en) 2000-07-10 2003-08-05 Weatherford/Lamb, Inc. Method and apparatus for seismically surveying an earth formation in relation to a borehole
GB0021976D0 (en) * 2000-09-07 2000-10-25 Optomed As Multi-parameter fiber optic probes
NO315762B1 (no) * 2000-09-12 2003-10-20 Optoplan As Sand-detektor
US20040042703A1 (en) * 2002-08-28 2004-03-04 Deaton Thomas M. Method and apparatus for sensing an environmental parameter in a wellbore
US6847034B2 (en) * 2002-09-09 2005-01-25 Halliburton Energy Services, Inc. Downhole sensing with fiber in exterior annulus
US6978832B2 (en) 2002-09-09 2005-12-27 Halliburton Energy Services, Inc. Downhole sensing with fiber in the formation
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
CA2444379C (en) 2002-10-06 2007-08-07 Weatherford/Lamb, Inc. Multiple component sensor mechanism
US6888972B2 (en) * 2002-10-06 2005-05-03 Weatherford/Lamb, Inc. Multiple component sensor mechanism
US20040065437A1 (en) * 2002-10-06 2004-04-08 Weatherford/Lamb Inc. In-well seismic sensor casing coupling using natural forces in wells
US7219729B2 (en) * 2002-11-05 2007-05-22 Weatherford/Lamb, Inc. Permanent downhole deployment of optical sensors
US6915686B2 (en) 2003-02-11 2005-07-12 Optoplan A.S. Downhole sub for instrumentation
US7159653B2 (en) 2003-02-27 2007-01-09 Weatherford/Lamb, Inc. Spacer sub
US6957574B2 (en) * 2003-05-19 2005-10-25 Weatherford/Lamb, Inc. Well integrity monitoring system
US6840114B2 (en) * 2003-05-19 2005-01-11 Weatherford/Lamb, Inc. Housing on the exterior of a well casing for optical fiber sensors
US7490664B2 (en) 2004-11-12 2009-02-17 Halliburton Energy Services, Inc. Drilling, perforating and formation analysis
US7397976B2 (en) * 2005-01-25 2008-07-08 Vetco Gray Controls Limited Fiber optic sensor and sensing system for hydrocarbon flow
US8186428B2 (en) * 2007-04-03 2012-05-29 Baker Hughes Incorporated Fiber support arrangement for a downhole tool and method
US7912334B2 (en) * 2007-09-19 2011-03-22 General Electric Company Harsh environment temperature sensing system and method
US9267330B2 (en) 2008-08-20 2016-02-23 Foro Energy, Inc. Long distance high power optical laser fiber break detection and continuity monitoring systems and methods
US8571368B2 (en) 2010-07-21 2013-10-29 Foro Energy, Inc. Optical fiber configurations for transmission of laser energy over great distances
US9347271B2 (en) 2008-10-17 2016-05-24 Foro Energy, Inc. Optical fiber cable for transmission of high power laser energy over great distances
US9080425B2 (en) 2008-10-17 2015-07-14 Foro Energy, Inc. High power laser photo-conversion assemblies, apparatuses and methods of use
US9074422B2 (en) 2011-02-24 2015-07-07 Foro Energy, Inc. Electric motor for laser-mechanical drilling
US9244235B2 (en) 2008-10-17 2016-01-26 Foro Energy, Inc. Systems and assemblies for transferring high power laser energy through a rotating junction
US9089928B2 (en) 2008-08-20 2015-07-28 Foro Energy, Inc. Laser systems and methods for the removal of structures
US9027668B2 (en) 2008-08-20 2015-05-12 Foro Energy, Inc. Control system for high power laser drilling workover and completion unit
US9360631B2 (en) 2008-08-20 2016-06-07 Foro Energy, Inc. Optics assembly for high power laser tools
US9669492B2 (en) 2008-08-20 2017-06-06 Foro Energy, Inc. High power laser offshore decommissioning tool, system and methods of use
US9664012B2 (en) 2008-08-20 2017-05-30 Foro Energy, Inc. High power laser decomissioning of multistring and damaged wells
US9242309B2 (en) 2012-03-01 2016-01-26 Foro Energy Inc. Total internal reflection laser tools and methods
US8820434B2 (en) 2008-08-20 2014-09-02 Foro Energy, Inc. Apparatus for advancing a wellbore using high power laser energy
US8627901B1 (en) 2009-10-01 2014-01-14 Foro Energy, Inc. Laser bottom hole assembly
US9138786B2 (en) 2008-10-17 2015-09-22 Foro Energy, Inc. High power laser pipeline tool and methods of use
US9719302B2 (en) 2008-08-20 2017-08-01 Foro Energy, Inc. High power laser perforating and laser fracturing tools and methods of use
BRPI1011890A8 (pt) 2009-06-29 2018-04-10 Halliburton Energy Services Inc métodos para operar um furo de poço, para produzir fluidos a partir de um furo de poço, para produzir fluidos a partir de um poço, para formar um poço em uma formação subterrânea, e para instalar equipamento de furo abaixo em um furo de poço
WO2011012406A1 (de) * 2009-07-30 2011-02-03 Hottinger Baldwin Messtechnik Gmbh Vorrichtung und verfahren zum ortsaufgelösten erfassen von bodenbewegungen
US8783360B2 (en) 2011-02-24 2014-07-22 Foro Energy, Inc. Laser assisted riser disconnect and method of use
US8783361B2 (en) 2011-02-24 2014-07-22 Foro Energy, Inc. Laser assisted blowout preventer and methods of use
US8720584B2 (en) 2011-02-24 2014-05-13 Foro Energy, Inc. Laser assisted system for controlling deep water drilling emergency situations
US8684088B2 (en) 2011-02-24 2014-04-01 Foro Energy, Inc. Shear laser module and method of retrofitting and use
US8662165B2 (en) 2010-07-06 2014-03-04 Baker Hughes Incorporated Fiber support arrangement and method
WO2012024285A1 (en) 2010-08-17 2012-02-23 Foro Energy Inc. Systems and conveyance structures for high power long distance laster transmission
US8542955B2 (en) * 2010-10-28 2013-09-24 General Electric Company Gas detection system incorporating fiber gas sensors having fiber bragg gratings
BR112013021478A2 (pt) 2011-02-24 2016-10-11 Foro Energy Inc método de perfuração de laser-mecânica de alta potência
WO2012167102A1 (en) 2011-06-03 2012-12-06 Foro Energy Inc. Rugged passively cooled high power laser fiber optic connectors and methods of use
BR112015004458A8 (pt) 2012-09-01 2019-08-27 Chevron Usa Inc sistema de controle de poço, bop a laser e conjunto de bop
US20140327919A1 (en) * 2013-05-06 2014-11-06 Halliburton Energy Services. Inc. Remote Seal for Pressure Sensor
CN103953330B (zh) * 2014-04-02 2016-09-14 北京博简复才技术咨询有限公司 深井油气层温度与压力在线集成监测装置及方法
US9624763B2 (en) 2014-09-29 2017-04-18 Baker Hughes Incorporated Downhole health monitoring system and method
US9448312B1 (en) 2015-03-11 2016-09-20 Baker Hughes Incorporated Downhole fiber optic sensors with downhole optical interrogator
NL2015952B1 (en) * 2015-12-11 2017-07-03 Fugro Tech Bv Pressure sensor and sensor system comprising one or more pressure sensors.
CN105725982A (zh) * 2016-01-25 2016-07-06 东华大学 一种基于光纤传感技术的鞋底温度、压力测试鞋垫
CN108917830A (zh) * 2018-06-19 2018-11-30 杭州市质量技术监督检测院 一种具有自感应功能的智能墙体
US20200152354A1 (en) * 2018-11-14 2020-05-14 Minnesota Wire Integrated circuits in cable

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235113A (en) * 1978-08-21 1980-11-25 Carome Edward F Optical fiber acoustical sensors
EP0066493A1 (de) * 1981-05-15 1982-12-08 Schlumberger Limited Kabel mit Lichtleitfaser als Druckwellenwandler
US5363463A (en) * 1982-08-06 1994-11-08 Kleinerman Marcos Y Remote sensing of physical variables with fiber optic systems
US4547869A (en) * 1983-04-04 1985-10-15 Western Geophysical Company Of America Marine seismic sensor
US5625605A (en) * 1983-09-13 1997-04-29 The United States Of America As Represented By The Secretary Of The Navy Optic bundle towed array
US5574699A (en) * 1983-10-31 1996-11-12 Cuomo; Frank W. Fiber optic lever towed array
US4761073A (en) * 1984-08-13 1988-08-02 United Technologies Corporation Distributed, spatially resolving optical fiber strain gauge
US4589285A (en) * 1984-11-05 1986-05-20 Western Geophysical Co. Of America Wavelength-division-multiplexed receiver array for vertical seismic profiling
WO1987002453A1 (en) * 1985-10-21 1987-04-23 Plessey Overseas Limited Sensing system using fibre optic sensors
US4649529A (en) * 1985-12-02 1987-03-10 Exxon Production Research Co. Multi-channel fiber optic sensor system
US4722603A (en) * 1986-06-27 1988-02-02 Chevron Research Company Interferometric means and method for accurate determination of fiber-optic well logging cable length
US5163321A (en) * 1989-10-17 1992-11-17 Baroid Technology, Inc. Borehole pressure and temperature measurement system
US4996419A (en) * 1989-12-26 1991-02-26 United Technologies Corporation Distributed multiplexed optical fiber Bragg grating sensor arrangeement
US5227857A (en) * 1991-04-24 1993-07-13 The United States Of America As Represented By The Secretary Of The Navy System for cancelling phase noise in an interferometric fiber optic sensor arrangement
US5485745A (en) * 1991-05-20 1996-01-23 Halliburton Company Modular downhole inspection system for coiled tubing
US5275038A (en) * 1991-05-20 1994-01-04 Otis Engineering Corporation Downhole reeled tubing inspection system with fiberoptic cable
US5380995A (en) * 1992-10-20 1995-01-10 Mcdonnell Douglas Corporation Fiber optic grating sensor systems for sensing environmental effects
US5397891A (en) * 1992-10-20 1995-03-14 Mcdonnell Douglas Corporation Sensor systems employing optical fiber gratings
US5361130A (en) * 1992-11-04 1994-11-01 The United States Of America As Represented By The Secretary Of The Navy Fiber grating-based sensing system with interferometric wavelength-shift detection
ATE158844T1 (de) * 1992-12-07 1997-10-15 Akishima Lab Mitsui Zosen Inc System für messungen während des bohrens mit druckpuls-ventil zur datenübertragung
KR960007884B1 (ko) * 1993-04-24 1996-06-15 국방과학연구소 광섬유 격자를 이용한 광섬유소자
IT1262407B (it) * 1993-09-06 1996-06-19 Finmeccanica Spa Strumentazione utilizzante componenti in ottica integrata per la diagnostica di parti con sensori a fibra ottica inclusi o fissati sulla superficie.
US5426297A (en) * 1993-09-27 1995-06-20 United Technologies Corporation Multiplexed Bragg grating sensors
US5401956A (en) * 1993-09-29 1995-03-28 United Technologies Corporation Diagnostic system for fiber grating sensors
US5400427A (en) * 1993-10-18 1995-03-21 Mobil Oil Corporation Fiber optic cable and viscous filler material
DE4337402A1 (de) * 1993-10-26 1995-04-27 Mannesmann Ag Sonde zur Messung von Druck- und Temperaturprofilen
US5410404A (en) * 1993-11-30 1995-04-25 The United States Of America As Represented By The Secretary Of The Navy Fiber grating-based detection system for wavelength encoded fiber sensors
US5451772A (en) * 1994-01-13 1995-09-19 Mechanical Technology Incorporated Distributed fiber optic sensor
US5493113A (en) * 1994-11-29 1996-02-20 United Technologies Corporation Highly sensitive optical fiber cavity coating removal detection
US5675674A (en) * 1995-08-24 1997-10-07 Rockbit International Optical fiber modulation and demodulation system

Also Published As

Publication number Publication date
EP0950170A1 (de) 1999-10-20
AR008552A1 (es) 2000-01-19
PE30599A1 (es) 1999-03-19
AU5722098A (en) 1998-07-31
CA2276449C (en) 2007-07-03
EP0950170B1 (de) 2002-09-11
NO993222L (no) 1999-06-29
NO993222D0 (no) 1999-06-29
NO320490B1 (no) 2005-12-12
WO1998029717A1 (en) 1998-07-09
US5767411A (en) 1998-06-16
DE69715455D1 (de) 2002-10-17
CA2276449A1 (en) 1998-07-09
CO4771128A1 (es) 1999-04-30

Similar Documents

Publication Publication Date Title
DE69715455T2 (de) Anordnung zur erhöhung der mechanischen spannung in inneren faseroptischen sensoren und aufbau für rauhe umgebengen
DE69801033D1 (de) Multifinktion-lichtsensor für fahrzeug
DE69729276D1 (de) Reifen mit transponder und transponder für reifen
DE69519777D1 (de) Mehrfach-Spannungssensor und Vorrichtung zur Messung von Strukturspannungen mit diesem Sensor
DE69914981D1 (de) Vibrationssensor mit optischem Wellenleiter für Fernmessung
FI102918B1 (fi) Mittausanturi ja järjestelmä kaasun virtausmittausta varten
DE69727102D1 (de) Integrierte hochauflösende Rundum-Sensoroptik
DE69733946D1 (de) Farbsensor mit luminanzpriorität
DE69733279D1 (de) Kraftstoffeinspritzeinheiten mit integrierten faseroptischen drucksensoren und dazugehorige kompensations-und uberwachungsvorrichtungen
DE69722688D1 (de) Fiberoptisch-gekoppelter interferometrischer Sensor
DE69723409D1 (de) Faseroptische Sensorspule mit Puffergebieten
DE69710385T2 (de) Sensor für flüssige und gasförmige Medien
DE69830230D1 (de) Verstärker mit variabler verstärkung und optisches sensorsystem für eine geldscheingültigkeitskontrolle
DE69720154D1 (de) Material für organische elektrolumineszente Vorrichtung und organisches elektrolumineszentes Element mit demselben
DE69535427D1 (de) Optische Anordnung und Herstellungsverfahren dafür
DE59505945D1 (de) Anordnung zur Lastpositionierung bei Kranen
DE69516819D1 (de) Ladevorrichtung für Fahrzeuge und Fahrzeuge versehen mit derselben
DE69607294D1 (de) V-Kolbenmotor mit Messaufnahmevorrichtung
DE69705857T2 (de) System zur messung des geräterauschens
DE29600914U1 (de) Anordnung zur Überwachung
DE29802734U1 (de) Anzeigevorrichtung für Wertgrößen und Lichtsignale in Fahrzeugen und Baumaschinen
DE60044260D1 (de) Seitenspiegeleinrichtung mit beleuchtung und signalleuchten für fahrzeuge
DE69633440D1 (de) Verlust- und Schieflagen-Fühleranordnung für einzelne Landeklappen
DE29605813U1 (de) Optikbaugruppe für Infrarotsensoren
DE29703860U1 (de) Anordnung zur Durchlicht-Refraktionsbestimmung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition