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GB2518359B - Acoustic cables - Google Patents

Acoustic cables

Info

Publication number
GB2518359B
GB2518359B GB1316364.7A GB201316364A GB2518359B GB 2518359 B GB2518359 B GB 2518359B GB 201316364 A GB201316364 A GB 201316364A GB 2518359 B GB2518359 B GB 2518359B
Authority
GB
United Kingdom
Prior art keywords
acoustic cables
cables
acoustic
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 - Fee Related
Application number
GB1316364.7A
Other versions
GB2518359A (en
GB201316364D0 (en
Inventor
Farhadiroushan Mahmoud
Parker Tom
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.)
Silixa Ltd
Original Assignee
Silixa 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 Silixa Ltd filed Critical Silixa Ltd
Priority to GB1316364.7A priority Critical patent/GB2518359B/en
Publication of GB201316364D0 publication Critical patent/GB201316364D0/en
Priority to US15/021,319 priority patent/US9823114B2/en
Priority to PCT/GB2014/052679 priority patent/WO2015036735A1/en
Priority to EP14762076.9A priority patent/EP3044554B1/en
Publication of GB2518359A publication Critical patent/GB2518359A/en
Priority to US15/804,657 priority patent/US10345139B2/en
Application granted granted Critical
Publication of GB2518359B publication Critical patent/GB2518359B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • G01D5/3537—Optical fibre sensor using a particular arrangement of the optical fibre itself
    • G01D5/3538—Optical fibre sensor using a particular arrangement of the optical fibre itself using a particular type of fiber, e.g. fibre with several cores, PANDA fiber, fiber with an elliptic core or the like
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
GB1316364.7A 2013-09-13 2013-09-13 Acoustic cables Expired - Fee Related GB2518359B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB1316364.7A GB2518359B (en) 2013-09-13 2013-09-13 Acoustic cables
US15/021,319 US9823114B2 (en) 2013-09-13 2014-09-04 Non-isotropic acoustic cable
PCT/GB2014/052679 WO2015036735A1 (en) 2013-09-13 2014-09-04 Non-isotropic acoustic cable
EP14762076.9A EP3044554B1 (en) 2013-09-13 2014-09-04 Fibre optic cable for a distributed acoustic sensing system
US15/804,657 US10345139B2 (en) 2013-09-13 2017-11-06 Non-isotropic acoustic cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1316364.7A GB2518359B (en) 2013-09-13 2013-09-13 Acoustic cables

Publications (3)

Publication Number Publication Date
GB201316364D0 GB201316364D0 (en) 2013-10-30
GB2518359A GB2518359A (en) 2015-03-25
GB2518359B true GB2518359B (en) 2018-05-23

Family

ID=49552655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1316364.7A Expired - Fee Related GB2518359B (en) 2013-09-13 2013-09-13 Acoustic cables

Country Status (1)

Country Link
GB (1) GB2518359B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2656112A2 (en) * 2010-12-21 2013-10-30 Shell Internationale Research Maatschappij B.V. Detecting the direction of acoustic signals with a fiber optical distributed acoustic sensing (das) assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027540A2 (en) * 1979-09-11 1981-04-29 Hydroacoustics Inc. Optical sensor and transducer array system
EP2418466A2 (en) * 2010-06-17 2012-02-15 Weatherford/Lamb, Inc. Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity
WO2012114077A2 (en) * 2011-02-25 2012-08-30 Optasense Holdings Limited Distributed acoustic sensing
WO2012177547A1 (en) * 2011-06-20 2012-12-27 Shell Oil Company Fiber optic cable with increased directional sensitivity
WO2013098321A2 (en) * 2011-12-30 2013-07-04 Shell Internationale Research Maatschappij B.V. Smart hydrocarbon fluid production method and system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027540A2 (en) * 1979-09-11 1981-04-29 Hydroacoustics Inc. Optical sensor and transducer array system
EP2418466A2 (en) * 2010-06-17 2012-02-15 Weatherford/Lamb, Inc. Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity
WO2012114077A2 (en) * 2011-02-25 2012-08-30 Optasense Holdings Limited Distributed acoustic sensing
WO2012177547A1 (en) * 2011-06-20 2012-12-27 Shell Oil Company Fiber optic cable with increased directional sensitivity
WO2013098321A2 (en) * 2011-12-30 2013-07-04 Shell Internationale Research Maatschappij B.V. Smart hydrocarbon fluid production method and system

Also Published As

Publication number Publication date
GB2518359A (en) 2015-03-25
GB201316364D0 (en) 2013-10-30

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Legal Events

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

Effective date: 20230913