JPWO2021111691A1 - - Google Patents

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Publication number
JPWO2021111691A1
JPWO2021111691A1 JP2021562457A JP2021562457A JPWO2021111691A1 JP WO2021111691 A1 JPWO2021111691 A1 JP WO2021111691A1 JP 2021562457 A JP2021562457 A JP 2021562457A JP 2021562457 A JP2021562457 A JP 2021562457A JP WO2021111691 A1 JPWO2021111691 A1 JP WO2021111691A1
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JP
Japan
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JP2021562457A
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JPWO2021111691A5 (ja
JP7347538B2 (ja
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Publication of JPWO2021111691A5 publication Critical patent/JPWO2021111691A5/ja
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Publication of JP7347538B2 publication Critical patent/JP7347538B2/ja
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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
    • G01H9/006—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors the vibrations causing a variation in the relative position of the end of a fibre and another element
    • 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
    • G01D5/35338—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
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
JP2021562457A 2019-12-03 2020-09-07 光ファイバセンシングシステム、測定装置及び測定方法 Active JP7347538B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019218774 2019-12-03
JP2019218774 2019-12-03
PCT/JP2020/033811 WO2021111691A1 (ja) 2019-12-03 2020-09-07 光ファイバセンシングシステム、測定装置及び測定方法

Publications (3)

Publication Number Publication Date
JPWO2021111691A1 true JPWO2021111691A1 (ja) 2021-06-10
JPWO2021111691A5 JPWO2021111691A5 (ja) 2022-07-27
JP7347538B2 JP7347538B2 (ja) 2023-09-20

Family

ID=76221860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021562457A Active JP7347538B2 (ja) 2019-12-03 2020-09-07 光ファイバセンシングシステム、測定装置及び測定方法

Country Status (3)

Country Link
US (1) US20220299358A1 (ja)
JP (1) JP7347538B2 (ja)
WO (1) WO2021111691A1 (ja)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04264699A (ja) * 1991-02-19 1992-09-21 Hitachi Cable Ltd 遠隔装置間の同期方法
JPH08307348A (ja) * 1995-05-08 1996-11-22 Sumitomo Electric Ind Ltd 光伝送装置
JPH09210740A (ja) * 1996-01-31 1997-08-15 Nec Corp 海底観測システム
JP2001281348A (ja) * 2000-03-31 2001-10-10 Natl Research Inst For Disaster Prevention 光学式測距装置
JP2004347575A (ja) * 2003-03-26 2004-12-09 Kyocera Corp Ｆｂｇセンシング装置
JP2006292566A (ja) * 2005-04-12 2006-10-26 Central Res Inst Of Electric Power Ind 気温分布測定方法および気温分布測定システム
JP2010237153A (ja) * 2009-03-31 2010-10-21 Occ Corp 海底観測システム
US20120035854A1 (en) * 2010-08-09 2012-02-09 Schlumberger Technology Corporation Seismic acquisition system including a distributed sensor having an optical fiber
US20160259083A1 (en) * 2013-10-17 2016-09-08 Halliburton Energy Services, Inc. Distributed sensing in an optical fiber network
US20170343389A1 (en) * 2014-12-03 2017-11-30 Silixa Ltd. Range extension for optical fiber sensing systems
WO2019014721A1 (en) * 2017-07-18 2019-01-24 Mark Andrew Englund METHOD AND SYSTEM FOR DISTRIBUTED ACOUSTIC DETECTION IN A MARINE ENVIRONMENT
JP2019518968A (ja) * 2016-06-23 2019-07-04 オプタセンス・ホールデイングス・リミテツド 光ファイバセンシング

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1458067B1 (en) * 2003-03-03 2006-12-13 Alcatel Multiple output raman fiber laser with stable and small output power for seed applications
CN101995320B (zh) * 2009-08-27 2012-03-21 华为海洋网络有限公司 检测水下设备故障的方法、装置及设备

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04264699A (ja) * 1991-02-19 1992-09-21 Hitachi Cable Ltd 遠隔装置間の同期方法
JPH08307348A (ja) * 1995-05-08 1996-11-22 Sumitomo Electric Ind Ltd 光伝送装置
JPH09210740A (ja) * 1996-01-31 1997-08-15 Nec Corp 海底観測システム
JP2001281348A (ja) * 2000-03-31 2001-10-10 Natl Research Inst For Disaster Prevention 光学式測距装置
JP2004347575A (ja) * 2003-03-26 2004-12-09 Kyocera Corp Ｆｂｇセンシング装置
JP2006292566A (ja) * 2005-04-12 2006-10-26 Central Res Inst Of Electric Power Ind 気温分布測定方法および気温分布測定システム
JP2010237153A (ja) * 2009-03-31 2010-10-21 Occ Corp 海底観測システム
US20120035854A1 (en) * 2010-08-09 2012-02-09 Schlumberger Technology Corporation Seismic acquisition system including a distributed sensor having an optical fiber
US20160259083A1 (en) * 2013-10-17 2016-09-08 Halliburton Energy Services, Inc. Distributed sensing in an optical fiber network
US20170343389A1 (en) * 2014-12-03 2017-11-30 Silixa Ltd. Range extension for optical fiber sensing systems
JP2019518968A (ja) * 2016-06-23 2019-07-04 オプタセンス・ホールデイングス・リミテツド 光ファイバセンシング
WO2019014721A1 (en) * 2017-07-18 2019-01-24 Mark Andrew Englund METHOD AND SYSTEM FOR DISTRIBUTED ACOUSTIC DETECTION IN A MARINE ENVIRONMENT

Also Published As

Publication number Publication date
US20220299358A1 (en) 2022-09-22
WO2021111691A1 (ja) 2021-06-10
JP7347538B2 (ja) 2023-09-20

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