NO20080050L - Fiberoptisk temperatur- og trykkfoler samt system innbefattende samme - Google Patents

Fiberoptisk temperatur- og trykkfoler samt system innbefattende samme

Info

Publication number
NO20080050L
NO20080050L NO20080050A NO20080050A NO20080050L NO 20080050 L NO20080050 L NO 20080050L NO 20080050 A NO20080050 A NO 20080050A NO 20080050 A NO20080050 A NO 20080050A NO 20080050 L NO20080050 L NO 20080050L
Authority
NO
Norway
Prior art keywords
fiber
pressure
spectral
temperature
sensor
Prior art date
Application number
NO20080050A
Other languages
English (en)
Inventor
Yuehua Chen
Original Assignee
Schlumberger Technology Bv
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 Schlumberger Technology Bv filed Critical Schlumberger Technology Bv
Publication of NO20080050L publication Critical patent/NO20080050L/no

Links

Classifications

    • 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
    • G01L19/0092—Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • G01K11/3206—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres at discrete locations in the fibre, e.g. using Bragg scattering
    • 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
    • G01D5/35306—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
    • G01D5/35338—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using other arrangements than interferometer arrangements
    • G01D5/35354—Sensor working in reflection
    • 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
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0033—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means
    • G01L9/0039—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means using photoelectric means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02171—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for compensating environmentally induced changes
    • G02B6/02176—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for compensating environmentally induced changes due to temperature fluctuations
    • G02B6/0218—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for compensating environmentally induced changes due to temperature fluctuations using mounting means, e.g. by using a combination of materials having different thermal expansion coefficients
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02195—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating
    • G02B6/022—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating using mechanical stress, e.g. tuning by compression or elongation, special geometrical shapes such as "dog-bone" or taper
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
    • G02B6/276—Removing selected polarisation component of light, i.e. polarizers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317—Light guides of the optical fibre type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

Et avfølingssystem som inkluderer en føler med en omslutning som definerer et kammer, et fiberoptisk segment som strekker seg fra utsiden av omslutningen inn i kammeret, og en sekvens av optiske bearbeidingselementer inne i kammeret. Bearbeidingselementene inkluderer et fiber Bragg-gitter, en polarisator, en sidehullfiber og et speil. En lyskilde er arrangert for å rette lys mot føleren eller følerne. En spektralanalysator er arrangert for å detektere lys som reflekteres tilbake fra føleren eller følerne. Fiber Bragg-gitteret reflekterer hovedsakelig et første spektralområde mens resten av det optiske spektrum overføres til polarisatoren og sidehullfiberen. Polarisatoren, sidehullfiberen og speilet samvirker til å returnere et optisk signal innenfor et andre spektralområde. Den karakteristiske bølgelengde av en topp i det første spektralområde er høyt sensitivt til temperatur og forholdsvis svakt sensitivt til trykk. Perioden av det optiske signal innenfor det andre spektralområde er høyt sensitivt til trykk og relativt svakt sensitivt til temperatur. Spektralanalysatoren måler disse spektralkomponenter for samtidig å utlede et mål på temperatur og trykk som effektivt kompenserer for temperatur-trykk kryssensitivitet av føleren eller følerne.
NO20080050A 2005-07-02 2008-01-04 Fiberoptisk temperatur- og trykkfoler samt system innbefattende samme NO20080050L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0513615A GB2427910B (en) 2005-07-02 2005-07-02 Fiber optic temperature and pressure sensor and system incorporating same
PCT/GB2006/002241 WO2007003876A1 (en) 2005-07-02 2006-06-20 Fiber optic temperature and pressure sensor and system incorporating same

Publications (1)

Publication Number Publication Date
NO20080050L true NO20080050L (no) 2008-02-01

Family

ID=34856577

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20080050A NO20080050L (no) 2005-07-02 2008-01-04 Fiberoptisk temperatur- og trykkfoler samt system innbefattende samme

Country Status (7)

Country Link
US (2) US7684656B2 (no)
CN (1) CN101253392B (no)
BR (1) BRPI0613125A2 (no)
CA (1) CA2612385C (no)
GB (1) GB2427910B (no)
NO (1) NO20080050L (no)
WO (1) WO2007003876A1 (no)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101334298B (zh) * 2007-10-31 2010-07-28 中国地震局地壳应力研究所 半缺口套管式高精度多功能光纤光栅传感器设计
DE102008055952A1 (de) 2008-09-04 2010-03-25 Pulsion Medical Systems Ag Optischer Mess-Katheter zur Thermodilutions-Messung und Pulskonturanalyse
US8076909B2 (en) * 2008-09-12 2011-12-13 Siemens Energy, Inc. Method and system for monitoring the condition of generator end windings
WO2010054262A1 (en) * 2008-11-07 2010-05-14 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Measurement of fiber twist by polarization tracking
US20100207019A1 (en) * 2009-02-17 2010-08-19 Schlumberger Technology Corporation Optical monitoring of fluid flow
CN101625273B (zh) * 2009-08-05 2011-09-14 山东大学 一种光纤光栅渗压计
US8195013B2 (en) * 2009-08-19 2012-06-05 The United States Of America, As Represented By The Secretary Of The Navy Miniature fiber optic temperature sensors
EP2486222A4 (en) 2009-10-05 2016-06-08 Nat Oilwell Varco Denmark Is FREE AND FLEXIBLE ELEODUCEL SYSTEM HAVING FIBER OPTIC SENSOR INSTALLED INSIDE
US20110133067A1 (en) * 2009-12-08 2011-06-09 Schlumberger Technology Corporation Optical sensor having a capillary tube and an optical fiber in the capillary tube
US8326095B2 (en) * 2010-02-08 2012-12-04 Schlumberger Technology Corporation Tilt meter including optical fiber sections
CN101776493B (zh) * 2010-03-10 2011-09-07 华南理工大学 光纤温/湿度传感器感应层及其制备方法与应用
WO2012003869A1 (en) * 2010-07-07 2012-01-12 Abb Research Ltd Fiber optic birefringent thermometer and method for manufacturing the same
US8330961B1 (en) 2010-07-15 2012-12-11 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Optical multi-species gas monitoring sensor and system
US8924158B2 (en) 2010-08-09 2014-12-30 Schlumberger Technology Corporation Seismic acquisition system including a distributed sensor having an optical fiber
US20120224801A1 (en) * 2011-03-04 2012-09-06 Baker Hughes Incorporated Fiber optic sealing apparatus
FR2979990B1 (fr) * 2011-09-09 2013-12-27 Andra Dispositif d'etalonnage en temperature et procedes d'etalonnage en temperature et positionnement d'un capteur de temperature a fibre optique
US9417103B2 (en) 2011-09-20 2016-08-16 Schlumberger Technology Corporation Multiple spectrum channel, multiple sensor fiber optic monitoring system
CN102393272B (zh) * 2011-10-15 2013-05-01 浙江师范大学 基于锥形光纤的光纤布拉格光栅液压传感方法
US8590385B2 (en) * 2011-12-12 2013-11-26 General Electric Company High pressure fiber optic sensor system
JP6039700B2 (ja) 2012-03-07 2016-12-07 オーエフエス ファイテル，エルエルシー 回折格子に基づくセンサ
DE102012104874B4 (de) * 2012-06-05 2016-05-19 Technische Universität München Optisches Messsystem mit Polarisationskompensation, sowie entsprechendes Verfahren
CN102728591B (zh) * 2012-06-11 2014-08-13 东南大学 光学系统中运动部件及线缆真空污染控制方法
US9274271B2 (en) 2012-09-14 2016-03-01 The United States Of America, As Represented By The Secretary Of The Navy Reconfigurable liquid metal fiber optic mirror
TWI465722B (zh) * 2012-10-03 2014-12-21 Univ Nat Yunlin Sci & Tech 光學流體速度感測裝置及方法
TWI457568B (zh) * 2012-10-09 2014-10-21 Univ Nat Yunlin Sci & Tech 光纖流體速度感測裝置與應用於其上之方法
DE102012109640A1 (de) * 2012-10-10 2014-04-10 Maschinenfabrik Reinhausen Gmbh Hochspannungstransformator mit Sensorsystem, Verfahren zur Überwachung von physikalischen Kenngrößen eines Hochspannungstransformators und Sensorsystem zur Überwachung physikalischer Kenngrößen
CN103033308A (zh) * 2012-12-17 2013-04-10 中国船舶重工集团公司第七一五研究所 一种温度实时精确补偿的光纤光栅压力传感器
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.
US9810594B2 (en) 2015-01-08 2017-11-07 Kulite Semiconductor Products, Inc. Thermally stable high temperature pressure and acceleration optical interferometric sensors
US9952067B2 (en) 2015-05-06 2018-04-24 Kulite Semiconductor Products, Inc. Systems and methods for optical measurements using multiple beam interferometric sensors
KR101653908B1 (ko) * 2015-02-25 2016-09-02 부경대학교 산학협력단 광섬유 압력 센서 및 이를 이용한 압력 측정방법
US9448312B1 (en) 2015-03-11 2016-09-20 Baker Hughes Incorporated Downhole fiber optic sensors with downhole optical interrogator
US10545166B2 (en) * 2015-05-08 2020-01-28 Fugro Technology B.V. Optical sensor device, sensor apparatus and cable comprising such device
US20180172536A1 (en) * 2015-06-18 2018-06-21 Multicore Photonics, Inc. FIBER OPTIC PRESSURE APPARATUS, METHODS, and APPLICATIONS
DE102015121859A1 (de) * 2015-12-15 2017-06-22 Endress+Hauser Gmbh+Co. Kg Drucksensor und Verfahren zum Bedienen eines Drucksensors
CN105671394B (zh) * 2016-01-22 2018-02-23 上海洛丁森工业自动化设备有限公司 镓液态金属材料及其在远传压力、差压变送器上的应用
CN106153124B (zh) * 2016-09-13 2018-05-08 中山水木光华电子信息科技有限公司 一种光纤温压一体传感器
JP2018059802A (ja) * 2016-10-05 2018-04-12 株式会社Ｉｈｉ検査計測 Ｆｂｇセンサ
WO2020214637A1 (en) * 2019-04-15 2020-10-22 Luna Innovations Incorporated Calculation of distributed birefringence and polarization mode dispersion from optical frequency domain reflectometry
US11867855B2 (en) * 2019-12-10 2024-01-09 Baker Hughes Oilfield Operations Llc Downhole fiber optic hydrophone
US20210286227A1 (en) * 2020-03-11 2021-09-16 Saudi Arabian Oil Company Reconfigurable optics for beam transformation
CN113804351B (zh) * 2020-06-16 2024-03-22 潍坊嘉腾液压技术有限公司 螺旋管路内压力响应及压力分布的检测系统
US11592349B2 (en) * 2021-02-02 2023-02-28 Honeywell International Inc. Combined temperature and pressure sensing device with improved electronic protection
CN113340350A (zh) * 2021-06-07 2021-09-03 中国电力科学研究院有限公司 光栅矢量传感器、架空线路覆冰弧垂状态监测装置及方法
RU207695U1 (ru) * 2021-09-09 2021-11-11 Акционерное общество "Москабельмет" (АО "МКМ") Оптический сенсорный кабель
CN113805125B (zh) * 2021-09-30 2022-09-13 重庆大学 基于光学游标效应的高灵敏度光纤磁场传感器
CN113983945B (zh) * 2021-12-28 2022-03-22 南京牧镭激光科技有限公司 控制光纤光栅中心波长的传感器制作装置
CN117233104B (zh) * 2023-11-16 2024-04-05 宁德时代新能源科技股份有限公司 基于光纤传感器的电池析锂检测方法及其设备

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885874A (en) * 1974-01-11 1975-05-27 Us Energy Laser plasma diagnostic using ring resonators
US4659923A (en) * 1981-03-09 1987-04-21 Polaroid Corporation Fiber optic interferometer transducer
US4918751A (en) 1987-10-05 1990-04-17 The University Of Rochester Method for optical pulse transmission through optical fibers which increases the pulse power handling capacity of the fibers
US5367399A (en) * 1992-02-13 1994-11-22 Holotek Ltd. Rotationally symmetric dual reflection optical beam scanner and system using same
GB9203471D0 (en) * 1992-02-19 1992-04-08 Sensor Dynamics Ltd Optical fibre pressure sensor
US5380995A (en) 1992-10-20 1995-01-10 Mcdonnell Douglas Corporation Fiber optic grating sensor systems for sensing environmental effects
US6215809B1 (en) * 1996-03-25 2001-04-10 Sdl, Inc. Stabilization of laser sources with closely-coupled optical reflectors using an internal dither circuit
US5841131A (en) 1997-07-07 1998-11-24 Schlumberger Technology Corporation Fiber optic pressure transducers and pressure sensing system incorporating same
US5757487A (en) 1997-01-30 1998-05-26 The United States Of America As Represented By The Secretary Of The Navy Methods and apparatus for distributed optical fiber sensing of strain or multiple parameters
US5898804A (en) * 1997-06-09 1999-04-27 Trw Inc. Precision wavelength control for automated fiber optic Bragg grating writing
US6538739B1 (en) * 1997-09-30 2003-03-25 The Regents Of The University Of California Bubble diagnostics
DE19807891A1 (de) * 1998-02-25 1999-08-26 Abb Research Ltd Faserlaser-Drucksensor
DE19860410A1 (de) * 1998-12-28 2000-06-29 Abb Research Ltd Faserlaser-Sensor zur Messung von differentiellen Drücken und von Strömungsgeschwindigkeiten
US6212306B1 (en) 1999-10-07 2001-04-03 David J. F. Cooper Method and device for time domain demultiplexing of serial fiber Bragg grating sensor arrays
US6816266B2 (en) * 2000-02-08 2004-11-09 Deepak Varshneya Fiber optic interferometric vital sign monitor for use in magnetic resonance imaging, confined care facilities and in-hospital
GB0021976D0 (en) * 2000-09-07 2000-10-25 Optomed As Multi-parameter fiber optic probes
GB0021975D0 (en) * 2000-09-07 2000-10-25 Optomed As Filter optic probes
EP1197738A1 (de) * 2000-10-18 2002-04-17 Abb Research Ltd. Anisotroper Faserlaser-Sensor mit verteilter Rückkopplung
US6560020B1 (en) * 2001-01-16 2003-05-06 Holotek, Llc Surface-relief diffraction grating
US6765724B1 (en) * 2001-01-16 2004-07-20 Holotek, Llc Diffraction grating-based wavelength selection unit having improved polarization dependent performance
US6954575B2 (en) * 2001-03-16 2005-10-11 Imra America, Inc. Single-polarization high power fiber lasers and amplifiers
NO316775B1 (no) * 2001-06-11 2004-05-03 Optoplan As Fremgangsmate for belegging av en fiber med fiberoptisk Bragg-Gitter (FBG)
US6931188B2 (en) * 2003-02-21 2005-08-16 Weatherford/Lamb, Inc. Side-hole cane waveguide sensor
US7403673B2 (en) * 2006-05-19 2008-07-22 Institut National D'optional Optical fiber polarimetric chemical sensor

Also Published As

Publication number Publication date
CA2612385C (en) 2016-03-15
CA2612385A1 (en) 2007-01-11
US20100135608A1 (en) 2010-06-03
US20080212917A1 (en) 2008-09-04
GB0513615D0 (en) 2005-08-10
US8218916B2 (en) 2012-07-10
CN101253392A (zh) 2008-08-27
WO2007003876A1 (en) 2007-01-11
GB2427910B (en) 2008-03-12
CN101253392B (zh) 2010-08-25
GB2427910A (en) 2007-01-10
BRPI0613125A2 (pt) 2010-12-21
US7684656B2 (en) 2010-03-23

Similar Documents

Publication Publication Date Title
NO20080050L (no) Fiberoptisk temperatur- og trykkfoler samt system innbefattende samme
ATE317115T1 (de) Gasdetektionsverfahren und gasdetektoreinrichtung
WO2005017495A3 (en) Interferometric sensor for characterizing materials
JP6283035B2 (ja) 試料中の成分を検出するための装置
HK1133170A1 (en) Apparatus for caries detection
EA201200949A1 (ru) Измерительное устройство и метод исследования пробного газа при помощи инфракрасной абсорбционной спектроскопии
ATE476650T1 (de) Probenkonzentrationsdetektor mit temperaturausgleich
GB2460573A (en) A method and apparatus for estimating a property of a fluid downhole
IL180258A0 (en) Optical sensors
WO2007087040A3 (en) Demodulation method and apparatus for fiber optic sensors
NO970674L (no) Anordning for mÕling av optisk b°lgelengde
ATE452330T1 (de) Kalibrierung für spektroskopische analysen
WO2007144880A3 (en) System and method for measurement of biological parameters of a subject
WO2011090744A3 (en) Intravascular optical coherence tomography system with pressure monitoring interface and accessories
CA2497433A1 (en) Gas sensor with increased measuring sesitivity
US20180168492A1 (en) Photoplethysmography apparatus
WO2008076353A3 (en) Optical spectrophotometer
ATE454847T1 (de) Optische durchleuchtung- und reflektanzspektroskopie zur quantifizierung von krankheitsrisiko
EA201100067A1 (ru) Оптическое измерительное устройство и способ проведения отражательных измерений
ATE398281T1 (de) Ein kryogener faseroptischer temperatursensor
SE8006679L (sv) Korrelerande fiberoptiskt metdon
RU2552222C1 (ru) Способ измерения температурного распределения и устройство для его осуществления
JP2007240294A (ja) 光ファイバ歪測定装置
RU2605640C2 (ru) СПОСОБ ОПРЕДЕЛЕНИЯ СПЕКТРАЛЬНОГО ПОКАЗАТЕЛЯ ОСЛАБЛЕНИЯ НАПРАВЛЕННОГО СВЕТА В МОРСКОЙ ВОДЕ "in situ"
DE502005011109D1 (de) Optisches Messgerät und Kraftmesser

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application