GB2558922A - Distributed acoustic sensing - Google Patents

Distributed acoustic sensing Download PDF

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Publication number
GB2558922A
GB2558922A GB1700994.5A GB201700994A GB2558922A GB 2558922 A GB2558922 A GB 2558922A GB 201700994 A GB201700994 A GB 201700994A GB 2558922 A GB2558922 A GB 2558922A
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GB
United Kingdom
Prior art keywords
optical
fibre
sensing
frequency
pulses
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.)
Withdrawn
Application number
GB1700994.5A
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English (en)
Other versions
GB201700994D0 (en
Inventor
Austin Edward
Zhao Weizhong
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.)
Focus Sensors Ltd
Original Assignee
Focus Sensors 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
Application filed by Focus Sensors Ltd filed Critical Focus Sensors Ltd
Priority to GB1700994.5A priority Critical patent/GB2558922A/en
Publication of GB201700994D0 publication Critical patent/GB201700994D0/en
Priority to ES18701282T priority patent/ES2879252T3/es
Priority to PCT/EP2018/050793 priority patent/WO2018134137A1/en
Priority to US16/479,109 priority patent/US10935398B2/en
Priority to CN201880015050.3A priority patent/CN110383009B/zh
Priority to EP18701282.8A priority patent/EP3571475B1/en
Priority to JP2019560464A priority patent/JP6921236B2/ja
Publication of GB2558922A publication Critical patent/GB2558922A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • G01D5/35335—Aspects of emitters or receivers used by an interferometer in an optical fibre sensor arrangement
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • 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
    • G01D5/35364—Sensor working in reflection using backscattering to detect the measured quantity using inelastic backscattering to detect the measured quantity, e.g. using Brillouin or Raman backscattering

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB1700994.5A 2017-01-20 2017-01-20 Distributed acoustic sensing Withdrawn GB2558922A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB1700994.5A GB2558922A (en) 2017-01-20 2017-01-20 Distributed acoustic sensing
ES18701282T ES2879252T3 (es) 2017-01-20 2018-01-12 Detección acústica distribuida
PCT/EP2018/050793 WO2018134137A1 (en) 2017-01-20 2018-01-12 Distributed acoustic sensing
US16/479,109 US10935398B2 (en) 2017-01-20 2018-01-12 Distributed acoustic sensing
CN201880015050.3A CN110383009B (zh) 2017-01-20 2018-01-12 光学感测系统及检测光学感测光纤中应力的方法
EP18701282.8A EP3571475B1 (en) 2017-01-20 2018-01-12 Distributed acoustic sensing
JP2019560464A JP6921236B2 (ja) 2017-01-20 2018-01-12 分散型音響センシング

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1700994.5A GB2558922A (en) 2017-01-20 2017-01-20 Distributed acoustic sensing

Publications (2)

Publication Number Publication Date
GB201700994D0 GB201700994D0 (en) 2017-03-08
GB2558922A true GB2558922A (en) 2018-07-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB1700994.5A Withdrawn GB2558922A (en) 2017-01-20 2017-01-20 Distributed acoustic sensing

Country Status (7)

Country Link
US (1) US10935398B2 (enExample)
EP (1) EP3571475B1 (enExample)
JP (1) JP6921236B2 (enExample)
CN (1) CN110383009B (enExample)
ES (1) ES2879252T3 (enExample)
GB (1) GB2558922A (enExample)
WO (1) WO2018134137A1 (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
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CN109941308A (zh) * 2019-03-21 2019-06-28 北京交通大学 一种基于光纤m-z干涉的异常扰动信号分析方法
CN111928938A (zh) * 2020-09-10 2020-11-13 无锡科晟光子科技有限公司 长距离分布式光纤振动检测系统
CN113790792A (zh) * 2021-08-18 2021-12-14 北京航空航天大学 一种基于零差探测的分布式光纤声波传感装置及解调方法
WO2023165893A1 (en) * 2022-03-02 2023-09-07 Sintela Limited Signal processing methods for an optical detection system

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JP7111045B2 (ja) * 2019-04-03 2022-08-02 日本電信電話株式会社 位相測定方法及び信号処理装置
JP7240947B2 (ja) * 2019-05-09 2023-03-16 株式会社アドバンテスト 光学試験用装置
GB2588177B (en) * 2019-10-11 2022-10-12 Sintela Ltd Signal processing methods for an optical detection system
JP7298471B2 (ja) * 2019-12-25 2023-06-27 沖電気工業株式会社 光コヒーレントセンサ及び光コヒーレントセンシング方法
CN111157102B (zh) * 2020-01-02 2022-03-08 河海大学常州校区 一种分布式光纤传感系统中消除频率干扰的定位方法
US11543287B2 (en) * 2020-05-20 2023-01-03 Nec Corporation Distributed acoustic sensing using multi-band time-gated digital orthogonal frequency domain reflectometry
JP7405270B2 (ja) * 2020-09-11 2023-12-26 日本電信電話株式会社 振動検出装置及び振動検出方法
GB2603205A (en) * 2021-02-02 2022-08-03 Focus Sensors Ltd Ground sensing utlising active sources
GB2609641B (en) * 2021-08-11 2024-10-02 Sintela Ltd Signal processing methods for an optical detection system
IL310911A (en) 2021-08-18 2024-04-01 Prisma Photonics Ltd Real-time quasi-coherent detection and fiber sensing using multi-frequency signals
US11942986B2 (en) * 2021-09-24 2024-03-26 Viavi Solutions Inc. Optical time-domain reflectometer (OTDR) including channel checker
EP4155708A1 (en) 2021-09-24 2023-03-29 Viavi Solutions Inc. Optical time-domain reflectometer (otdr) including channel checker
US12104972B2 (en) * 2021-09-28 2024-10-01 The Government Of The United States Of America, As Represented By The Secretary Of The Navy Multiplexed long-range fiber optic sensing
US20230152543A1 (en) * 2021-11-18 2023-05-18 Nec Laboratories America, Inc Impulse signal detection for buried cable protection using distributed fiber optic sensing
CN116182916B (zh) * 2023-04-27 2023-07-07 四川省医学科学院·四川省人民医院 一种宽带相位调制处理的光子传感系统
EP4563947A1 (en) * 2023-11-30 2025-06-04 BAE SYSTEMS plc Distributed fibre optic sensing
CN119437391B (zh) * 2024-11-29 2025-05-06 南京木木西里科技有限公司 一种基于光纤传感的单频激光干涉振动测量系统及方法

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CN109941308A (zh) * 2019-03-21 2019-06-28 北京交通大学 一种基于光纤m-z干涉的异常扰动信号分析方法
CN111928938A (zh) * 2020-09-10 2020-11-13 无锡科晟光子科技有限公司 长距离分布式光纤振动检测系统
CN113790792A (zh) * 2021-08-18 2021-12-14 北京航空航天大学 一种基于零差探测的分布式光纤声波传感装置及解调方法
WO2023165893A1 (en) * 2022-03-02 2023-09-07 Sintela Limited Signal processing methods for an optical detection system

Also Published As

Publication number Publication date
CN110383009A (zh) 2019-10-25
EP3571475A1 (en) 2019-11-27
CN110383009B (zh) 2021-09-07
US20190383648A1 (en) 2019-12-19
JP6921236B2 (ja) 2021-08-18
GB201700994D0 (en) 2017-03-08
US10935398B2 (en) 2021-03-02
EP3571475B1 (en) 2021-03-31
WO2018134137A1 (en) 2018-07-26
ES2879252T3 (es) 2021-11-22
JP2020508467A (ja) 2020-03-19

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