JP7311023B2 - 光ファイバセンシングシステム、光ファイバセンシング方法、及び光ファイバセンシング装置 - Google Patents

光ファイバセンシングシステム、光ファイバセンシング方法、及び光ファイバセンシング装置 Download PDF

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Publication number
JP7311023B2
JP7311023B2 JP2022504910A JP2022504910A JP7311023B2 JP 7311023 B2 JP7311023 B2 JP 7311023B2 JP 2022504910 A JP2022504910 A JP 2022504910A JP 2022504910 A JP2022504910 A JP 2022504910A JP 7311023 B2 JP7311023 B2 JP 7311023B2
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Japan
Prior art keywords
optical fiber
information
monitoring target
sensing
service provider
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JP2022504910A
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Japanese (ja)
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JPWO2021176683A1 (https=
JPWO2021176683A5 (https=
Inventor
忠行 岩野
義明 青野
啓徳 北原
理 石井
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NEC Corp
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NEC Corp
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    • 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
    • G01D5/35341—Sensor working in transmission
    • G01D5/35351—Sensor working in transmission using other means to detect the measured quantity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
    • 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
    • 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
    • G01D5/268—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 using optical fibres

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP2022504910A 2020-03-06 2020-03-06 光ファイバセンシングシステム、光ファイバセンシング方法、及び光ファイバセンシング装置 Active JP7311023B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/009653 WO2021176683A1 (ja) 2020-03-06 2020-03-06 光ファイバセンシングシステム、光ファイバセンシング方法、及び光ファイバセンシング装置

Publications (3)

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JPWO2021176683A1 JPWO2021176683A1 (https=) 2021-09-10
JPWO2021176683A5 JPWO2021176683A5 (https=) 2022-09-29
JP7311023B2 true JP7311023B2 (ja) 2023-07-19

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JP2022504910A Active JP7311023B2 (ja) 2020-03-06 2020-03-06 光ファイバセンシングシステム、光ファイバセンシング方法、及び光ファイバセンシング装置

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Country Link
US (1) US12352619B2 (https=)
JP (1) JP7311023B2 (https=)
WO (1) WO2021176683A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7635830B2 (ja) * 2021-04-09 2025-02-26 日本電気株式会社 道路監視システム、道路監視装置、道路監視方法、及び道路監視プログラム
JPWO2023079605A1 (https=) * 2021-11-04 2023-05-11

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007198973A (ja) 2006-01-27 2007-08-09 Matsushita Electric Works Ltd フェンス振動センサ装置
JP2013253831A (ja) 2012-06-06 2013-12-19 Panasonic Corp 異常音検知装置及び方法
US20170176243A1 (en) 2015-08-14 2017-06-22 Halliburton Energy Services, Inc. Mud pulse detection using distributed acoustic sensing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002269656A (ja) 2001-03-12 2002-09-20 Foundation Of River & Basin Integrated Communications Japan 河川情報提供システム
EP3510363B1 (en) * 2016-09-08 2023-11-01 Fiber Sense Limited Method for distributed acoustic sensing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007198973A (ja) 2006-01-27 2007-08-09 Matsushita Electric Works Ltd フェンス振動センサ装置
JP2013253831A (ja) 2012-06-06 2013-12-19 Panasonic Corp 異常音検知装置及び方法
US20170176243A1 (en) 2015-08-14 2017-06-22 Halliburton Energy Services, Inc. Mud pulse detection using distributed acoustic sensing

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JPWO2021176683A1 (https=) 2021-09-10
US12352619B2 (en) 2025-07-08
US20230112149A1 (en) 2023-04-13
WO2021176683A1 (ja) 2021-09-10

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