SG11202104703YA - Method and system for distributed fibre optic sensing - Google Patents

Method and system for distributed fibre optic sensing

Info

Publication number
SG11202104703YA
SG11202104703YA SG11202104703YA SG11202104703YA SG11202104703YA SG 11202104703Y A SG11202104703Y A SG 11202104703YA SG 11202104703Y A SG11202104703Y A SG 11202104703YA SG 11202104703Y A SG11202104703Y A SG 11202104703YA SG 11202104703Y A SG11202104703Y A SG 11202104703YA
Authority
SG
Singapore
Prior art keywords
fibre optic
optic sensing
distributed fibre
distributed
sensing
Prior art date
Application number
SG11202104703YA
Inventor
Mark Andrew Englund
Original Assignee
Fiber Sense Pty Ltd
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
Priority claimed from AU2018904319A external-priority patent/AU2018904319A0/en
Application filed by Fiber Sense Pty Ltd filed Critical Fiber Sense Pty Ltd
Publication of SG11202104703YA publication Critical patent/SG11202104703YA/en

Links

Classifications

    • 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
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/22—Transmitting seismic signals to recording or processing apparatus
    • G01V1/226—Optoseismic systems
    • 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
    • G01D5/35358—Sensor working in reflection using backscattering 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
    • G01D5/35338—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
    • G01D5/35358—Sensor working in reflection using backscattering to detect the measured quantity
    • G01D5/35361—Sensor working in reflection using backscattering to detect the measured quantity using elastic backscattering to detect the measured quantity, e.g. using Rayleigh backscattering
    • 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
    • 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
    • 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
    • G01L1/246—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 integrated gratings, e.g. Bragg gratings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Optical Transform (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
SG11202104703YA 2018-11-13 2019-11-13 Method and system for distributed fibre optic sensing SG11202104703YA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2018904319A AU2018904319A0 (en) 2018-11-13 Method and system for distributed fibre optic sensing
PCT/AU2019/051249 WO2020097682A1 (en) 2018-11-13 2019-11-13 Method and system for distributed fibre optic sensing

Publications (1)

Publication Number Publication Date
SG11202104703YA true SG11202104703YA (en) 2021-06-29

Family

ID=70731023

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202104703YA SG11202104703YA (en) 2018-11-13 2019-11-13 Method and system for distributed fibre optic sensing

Country Status (7)

Country Link
US (1) US20220018980A1 (en)
EP (1) EP3881034B1 (en)
JP (1) JP7483702B2 (en)
AU (1) AU2019380874A1 (en)
CA (1) CA3119376A1 (en)
SG (1) SG11202104703YA (en)
WO (1) WO2020097682A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11619542B2 (en) * 2020-04-14 2023-04-04 Nec Corporation Distributed acoustic sensing based natural frequency measurement of civil infrastructures
US11543286B2 (en) * 2020-04-14 2023-01-03 Nec Corporation Distributed acoustic sensing based acoustic wave speed scanning and mapping of civil infrastructures
WO2023073762A1 (en) * 2021-10-25 2023-05-04 日本電気株式会社 Monitoring system and monitoring method
EP4273509A1 (en) * 2022-05-02 2023-11-08 Omnisens S.A. Device and method for distributed sensing, preferably in a star network

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4144256B2 (en) 2002-05-29 2008-09-03 沖電気工業株式会社 Optical fiber sensor
GB2442745B (en) * 2006-10-13 2011-04-06 At & T Corp Method and apparatus for acoustic sensing using multiple optical pulses
GB2445364B (en) 2006-12-29 2010-02-17 Schlumberger Holdings Fault-tolerant distributed fiber optic intrusion detection
CA3175365A1 (en) * 2009-05-27 2010-12-02 Silixa Ltd Method and apparatus for optical sensing
US9002150B2 (en) * 2012-05-08 2015-04-07 General Dynamics Advanced Information Systems, Inc. Optical sensing system and method
GB201212701D0 (en) * 2012-07-17 2012-08-29 Silixa Ltd Structure monitoring
GB2525251A (en) * 2014-04-18 2015-10-21 Mic Ag Optical fibre sensor system
GB201408125D0 (en) 2014-05-08 2014-06-25 Optasense Holdings Ltd Fibre optic distributed sensing
GB201413242D0 (en) 2014-07-25 2014-09-10 Fotech Solutions Ltd Distributed Optical Fibre Sensors
WO2016032420A1 (en) * 2014-08-25 2016-03-03 Halliburton Energy Services, Inc. Hybrid fiber optic cable for distributed sensing
GB201507114D0 (en) 2015-04-27 2015-06-10 Fotech Solutions Ltd Distributed optical fibre sensor
EP3384253B1 (en) 2015-12-01 2020-02-05 Optasense, Inc. Distributed fibre optic sensing for monitoring rail networks
WO2017116383A1 (en) * 2015-12-28 2017-07-06 Halliburton Energy Services, Inc. Distributed optical sensing using compressive sampling
CA3116374A1 (en) 2016-09-08 2018-03-15 Fiber Sense Pty Ltd Method and system for distributed acoustic sensing
JP6974457B2 (en) * 2016-11-10 2021-12-01 ファイバー センス ピーティーワイ リミテッド Acoustic methods and systems that provide digital data
GB201703051D0 (en) 2017-02-24 2017-04-12 Optasense Holdings Ltd Monitoring subsea cables

Also Published As

Publication number Publication date
EP3881034B1 (en) 2024-04-24
AU2019380874A1 (en) 2021-06-17
EP3881034A1 (en) 2021-09-22
US20220018980A1 (en) 2022-01-20
CA3119376A1 (en) 2020-05-22
EP3881034A4 (en) 2022-08-03
JP7483702B2 (en) 2024-05-15
EP3881034C0 (en) 2024-04-24
JP2022507455A (en) 2022-01-18
WO2020097682A1 (en) 2020-05-22

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