JPWO2021010407A1 - - Google Patents

Info

Publication number
JPWO2021010407A1
JPWO2021010407A1 JP2021533083A JP2021533083A JPWO2021010407A1 JP WO2021010407 A1 JPWO2021010407 A1 JP WO2021010407A1 JP 2021533083 A JP2021533083 A JP 2021533083A JP 2021533083 A JP2021533083 A JP 2021533083A JP WO2021010407 A1 JPWO2021010407 A1 JP WO2021010407A1
Authority
JP
Japan
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.)
Pending
Application number
JP2021533083A
Other versions
JPWO2021010407A5 (ja
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 filed Critical
Publication of JPWO2021010407A1 publication Critical patent/JPWO2021010407A1/ja
Publication of JPWO2021010407A5 publication Critical patent/JPWO2021010407A5/ja
Pending legal-status Critical Current

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
    • 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
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/06—Visualisation of the interior, e.g. acoustic microscopy
    • G01N29/0654—Imaging
    • G01N29/069—Defect imaging, localisation and sizing using, e.g. time of flight diffraction [TOFD], synthetic aperture focusing technique [SAFT], Amplituden-Laufzeit-Ortskurven [ALOK] technique
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/043—Analysing solids in the interior, e.g. by shear waves

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP2021533083A 2019-07-16 2020-07-15 Pending JPWO2021010407A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019131495 2019-07-16
PCT/JP2020/027424 WO2021010407A1 (ja) 2019-07-16 2020-07-15 光ファイバセンシングシステム、光ファイバセンシング機器、及び配管劣化検知方法

Publications (2)

Publication Number Publication Date
JPWO2021010407A1 true JPWO2021010407A1 (ja) 2021-01-21
JPWO2021010407A5 JPWO2021010407A5 (ja) 2022-04-13

Family

ID=74210856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021533083A Pending JPWO2021010407A1 (ja) 2019-07-16 2020-07-15

Country Status (5)

Country Link
US (1) US20220244097A1 (ja)
EP (1) EP4001863A4 (ja)
JP (1) JPWO2021010407A1 (ja)
CN (1) CN114127519A (ja)
WO (1) WO2021010407A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220137595A1 (en) * 2020-11-03 2022-05-05 Verizon Patent And Licensing Inc. Systems and methods for utilizing acoustic sensing to minimize a potential of damage to fiber optic cables
CN114857504A (zh) * 2022-06-06 2022-08-05 华南理工大学 基于分布式光纤传感器和深度学习的管道安全监测方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010107362A (ja) * 2008-10-30 2010-05-13 Sumitomo Chemical Co Ltd 保温材下腐食検査方法
JP2011174765A (ja) * 2010-02-23 2011-09-08 Chugoku Electric Power Co Inc:The 機器劣化評価支援方法及び機器劣化評価支援装置
JP2017523427A (ja) * 2014-04-17 2017-08-17 サウジ アラビアン オイル カンパニー ファイバーオプティクスを用いて行うパイプラインの完全性の監視

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US5026141A (en) * 1981-08-24 1991-06-25 G2 Systems Corporation Structural monitoring system using fiber optics
JPH10207534A (ja) 1997-01-28 1998-08-07 Babcock Hitachi Kk 高温ガス配管の配管異常検知方法および装置
CA2467898A1 (en) * 2004-05-21 2005-11-21 Pure Technologies Ltd. Fiber optic sensor method and apparatus
US7617873B2 (en) * 2004-05-28 2009-11-17 Schlumberger Technology Corporation System and methods using fiber optics in coiled tubing
JP4471956B2 (ja) * 2005-06-03 2010-06-02 秀雄 長 弾性波検出装置
JP2007121155A (ja) * 2005-10-28 2007-05-17 Univ Of Fukui 異常検知装置及び異常検知方法
JP2010054349A (ja) * 2008-08-28 2010-03-11 Toshiba Corp 配管劣化診断装置および方法
JP2010139248A (ja) * 2008-12-09 2010-06-24 Takayoshi Yamamoto 対象設備の寿命予測の方法、コンピュータプログラム、及び、対象設備の寿命予測のための装置
US8131121B2 (en) * 2009-07-07 2012-03-06 At&T Intellectual Property I, L.P. Optical fiber pipeline monitoring system and method
WO2011103032A2 (en) * 2010-02-18 2011-08-25 US Seismic Systems, Inc. Optical detection systems and methods of using the same
JP2011203116A (ja) * 2010-03-25 2011-10-13 Toyota Motor Corp 車両用異常予測装置及び方法
JP2013044612A (ja) * 2011-08-23 2013-03-04 Jfe Engineering Corp 埋設配管破損位置の検出方法及び装置
JP6079776B2 (ja) * 2012-06-06 2017-02-15 日本電気株式会社 構造物の分析装置および構造物の分析方法
JP6154166B2 (ja) * 2013-03-26 2017-06-28 中国電力株式会社 配管内の詰まり又は壁面への付着物の付着を迅速に検知する方法及びシステム、並びにこれらの利用
GB2539254A (en) * 2015-06-12 2016-12-14 Pimon Gmbh Method and apparatus for monitoring pipeline
US20180348080A1 (en) * 2015-12-03 2018-12-06 Nec Corporation Device, method, and recording medium
JP2017142153A (ja) * 2016-02-10 2017-08-17 セイコーエプソン株式会社 寿命予測方法、寿命予測装置、および寿命予測システム
CN105841793A (zh) * 2016-04-15 2016-08-10 深圳艾瑞斯通技术有限公司 一种光纤振源识别方法、装置及系统
JP6457990B2 (ja) * 2016-11-09 2019-01-23 エヌ・ティ・ティ・アドバンステクノロジ株式会社 判定装置、判定方法及び学習装置
JP2020186911A (ja) * 2017-07-28 2020-11-19 長野計器株式会社 下水道モニタリングシステム及びその施工方法
JP2019131495A (ja) 2018-01-30 2019-08-08 カーリットホールディングス株式会社 粉末状グリセリルマルトシドの製造方法及びその用途
CN109027704B (zh) * 2018-05-30 2020-07-28 华中科技大学 基于微结构光纤分布式传感的管道监测系统及监测方法
KR101883359B1 (ko) * 2018-06-12 2018-08-30 김기수 지중 전력 케이블의 열화 감지시스템

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010107362A (ja) * 2008-10-30 2010-05-13 Sumitomo Chemical Co Ltd 保温材下腐食検査方法
JP2011174765A (ja) * 2010-02-23 2011-09-08 Chugoku Electric Power Co Inc:The 機器劣化評価支援方法及び機器劣化評価支援装置
JP2017523427A (ja) * 2014-04-17 2017-08-17 サウジ アラビアン オイル カンパニー ファイバーオプティクスを用いて行うパイプラインの完全性の監視

Also Published As

Publication number Publication date
US20220244097A1 (en) 2022-08-04
CN114127519A (zh) 2022-03-01
EP4001863A1 (en) 2022-05-25
WO2021010407A1 (ja) 2021-01-21
EP4001863A4 (en) 2022-08-17

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