GB2125572B - Optical fibre sensors - Google Patents

Optical fibre sensors

Info

Publication number
GB2125572B
GB2125572B GB8222371A GB8222371A GB2125572B GB 2125572 B GB2125572 B GB 2125572B GB 8222371 A GB8222371 A GB 8222371A GB 8222371 A GB8222371 A GB 8222371A GB 2125572 B GB2125572 B GB 2125572B
Authority
GB
United Kingdom
Prior art keywords
optical fibre
fibre sensors
sensors
optical
fibre
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
Application number
GB8222371A
Other versions
GB2125572A (en
Inventor
Richard Edward Epworth
Vincent Andrei Handerek
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB8222371A priority Critical patent/GB2125572B/en
Priority to NZ204955A priority patent/NZ204955A/en
Priority to DE19833325945 priority patent/DE3325945A1/en
Priority to AU17411/83A priority patent/AU560013B2/en
Priority to ES524719A priority patent/ES8500660A1/en
Priority to JP58142392A priority patent/JPS5990025A/en
Publication of GB2125572A publication Critical patent/GB2125572A/en
Application granted granted Critical
Publication of GB2125572B publication Critical patent/GB2125572B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/242—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
    • G01L1/243—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using means for applying force perpendicular to the fibre axis
    • G01L1/245—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using means for applying force perpendicular to the fibre axis using microbending
    • 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
    • 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
    • G01D5/35341—Sensor working in transmission
    • G01D5/35345—Sensor working in transmission using Amplitude variations to detect the measured quantity
    • 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
    • G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
    • G01D5/35374—Particular layout of the fiber
    • 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
    • G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
    • G01D5/35377—Means for amplifying or modifying the measured quantity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
    • 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
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/14—Mode converters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0128—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects
    • G02F1/0131—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence
    • G02F1/0134—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence in optical waveguides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
GB8222371A 1982-08-03 1982-08-03 Optical fibre sensors Expired GB2125572B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB8222371A GB2125572B (en) 1982-08-03 1982-08-03 Optical fibre sensors
NZ204955A NZ204955A (en) 1982-08-03 1983-07-19 Optical fibre vibration sensor:fibre movement forces mode coupling
DE19833325945 DE3325945A1 (en) 1982-08-03 1983-07-19 Fibre-optical sensor and a sensor device containing the former
AU17411/83A AU560013B2 (en) 1982-08-03 1983-07-29 Optical fibre sensors
ES524719A ES8500660A1 (en) 1982-08-03 1983-08-03 Optical fibre sensors
JP58142392A JPS5990025A (en) 1982-08-03 1983-08-03 Optical fiber sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8222371A GB2125572B (en) 1982-08-03 1982-08-03 Optical fibre sensors

Publications (2)

Publication Number Publication Date
GB2125572A GB2125572A (en) 1984-03-07
GB2125572B true GB2125572B (en) 1985-12-24

Family

ID=10532076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8222371A Expired GB2125572B (en) 1982-08-03 1982-08-03 Optical fibre sensors

Country Status (5)

Country Link
JP (1) JPS5990025A (en)
AU (1) AU560013B2 (en)
ES (1) ES8500660A1 (en)
GB (1) GB2125572B (en)
NZ (1) NZ204955A (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2161609B (en) * 1984-07-11 1987-10-07 Stc Plc Optical fibres
SE443656B (en) * 1984-07-20 1986-03-03 Ericsson Telefon Ab L M MICROBOOK LIKE OPTICAL FIBER CABLE
US4735484A (en) * 1985-02-08 1988-04-05 Board Of Trustees Of The Leland Stanford Junior University Acousto-optic frequency shifter utilizing multi-turn optical fiber
US4986624A (en) * 1985-07-15 1991-01-22 The Board Of Trustees Of The Leland Stanford Junior University Optical fiber evanescent grating reflector
GB2182516A (en) * 1985-11-01 1987-05-13 Stc Plc Optical fibre network
GB2186683A (en) * 1986-02-15 1987-08-19 Pilkington Brothers Plc Optical fibre intrusion detector
GB2188164B (en) * 1986-03-19 1989-11-15 Stc Plc Optical fibre polariser
IT1190599B (en) * 1986-06-17 1988-02-16 Cselt Centro Studi Lab Telecom PROCEDURE AND DEVICE FOR THE MEASUREMENT OF THE BEATENING LENGTH OF THE POLARIZATION IN SINGLE-MODE HIGH-BIFRANFENCE OPTICAL FIBERS
GB2196424A (en) * 1986-10-24 1988-04-27 Boc Group Plc Detecting swelling beneath the skin
GB8704540D0 (en) * 1987-02-26 1987-04-01 Bicc Plc Optical sensors
GB2213588B (en) * 1987-12-08 1991-07-31 Plessey Co Plc Improvements relating to optical sensors
GB2215055B (en) * 1988-02-20 1992-04-01 Stc Plc Optical fibre sensor
DE69023799T2 (en) * 1989-04-19 1996-07-11 Bestquint Ltd Fiber optic sensor.
GB2238613A (en) * 1989-12-01 1991-06-05 R D P Electronics Limited Movement sensing process
DE19534260C2 (en) * 1995-09-15 2002-07-04 Friedrich Motzko Rope-shaped fiber optic load sensor
EP1011184A1 (en) * 1998-12-15 2000-06-21 Talltec Technologies Holdings S.A. Safety device for an electric motor-driven sliding panel and method for carrying out this arrangement
FR2794540B1 (en) * 1999-06-01 2001-08-10 Laurent Dellsperger DEVICE AND METHOD FOR MONITORING AND / OR CONTROLLING AT LEAST ONE ACTUATOR
EP1739394A1 (en) * 2005-06-30 2007-01-03 Talltec Technologies Holdings S.A. Shock sensor with multimode optical fibre following the principle of the coupling between the guided modes.
WO2006089729A1 (en) * 2005-02-24 2006-08-31 Talltec Technologies Holdings S.A. Multimode optical fiber impact sensor operating in accordance with the principle of coupling between fiber-guided modes guided
FR2921482B1 (en) * 2007-09-26 2009-11-13 Phosylab MULTIMODE OPTICAL FIBER OPTICAL TRANSDUCER, COUPLING MODES, METHOD FOR PRODUCING THE SAME
GB2510775A (en) * 2011-12-30 2014-08-13 Shell Int Research Smart hydrocarbon fluid production method and system
DE102013107276A1 (en) 2012-07-11 2013-10-02 Lios Technology Gmbh Device for distributed optical pressure measurement in borehole, comprises optical light guide with core, which guides light from light source along measurement path, and casing that reacts to pressure change with elongation or contraction
CN109581400B (en) * 2019-01-31 2024-09-20 宁波梅山保税港区真优成选股权投资中心(有限合伙) Distributed laser radar system and laser ranging method
GB2586974B (en) * 2019-09-06 2022-12-28 Nuron Ltd System for producing strain in a fibre
CN113299023B (en) * 2021-05-21 2022-08-30 孙安 Noise self-compensation distributed optical fiber anti-intrusion sensing array system and method

Also Published As

Publication number Publication date
GB2125572A (en) 1984-03-07
JPS5990025A (en) 1984-05-24
NZ204955A (en) 1986-07-11
AU1741183A (en) 1984-02-09
ES524719A0 (en) 1984-06-01
ES8500660A1 (en) 1984-06-01
AU560013B2 (en) 1987-03-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920803