JPWO2021106025A1 - - Google Patents

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Publication number
JPWO2021106025A1
JPWO2021106025A1 JP2021560760A JP2021560760A JPWO2021106025A1 JP WO2021106025 A1 JPWO2021106025 A1 JP WO2021106025A1 JP 2021560760 A JP2021560760 A JP 2021560760A JP 2021560760 A JP2021560760 A JP 2021560760A JP WO2021106025 A1 JPWO2021106025 A1 JP WO2021106025A1
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.)
Granted
Application number
JP2021560760A
Other versions
JP7201102B2 (ja
JPWO2021106025A5 (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 JPWO2021106025A1 publication Critical patent/JPWO2021106025A1/ja
Publication of JPWO2021106025A5 publication Critical patent/JPWO2021106025A5/ja
Application granted granted Critical
Publication of JP7201102B2 publication Critical patent/JP7201102B2/ja
Active 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
    • 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
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
JP2021560760A 2019-11-25 2019-11-25 位置検出装置及び位置検出方法 Active JP7201102B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/045896 WO2021106025A1 (ja) 2019-11-25 2019-11-25 位置検出装置及び位置検出方法

Publications (3)

Publication Number Publication Date
JPWO2021106025A1 true JPWO2021106025A1 (ja) 2021-06-03
JPWO2021106025A5 JPWO2021106025A5 (ja) 2022-06-15
JP7201102B2 JP7201102B2 (ja) 2023-01-10

Family

ID=76129223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021560760A Active JP7201102B2 (ja) 2019-11-25 2019-11-25 位置検出装置及び位置検出方法

Country Status (3)

Country Link
US (1) US20230019450A1 (ja)
JP (1) JP7201102B2 (ja)
WO (1) WO2021106025A1 (ja)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007506960A (ja) * 2003-09-24 2007-03-22 キネテイツク・リミテツド 光ファイバ監視システム
JP2007187578A (ja) * 2006-01-13 2007-07-26 Nihon Electric Wire & Cable Co Ltd 光ファイバ型センサおよび光ファイバ型センサシステム
JP2017134746A (ja) * 2016-01-29 2017-08-03 日本ドライケミカル株式会社 防災システム
JP2017134681A (ja) * 2016-01-28 2017-08-03 日本ドライケミカル株式会社 火災及び侵入の検知並びに報知システム
US20170260839A1 (en) * 2016-03-09 2017-09-14 Conocophillips Company Das for well ranging
JP2018194372A (ja) * 2017-05-15 2018-12-06 日本電信電話株式会社 光ファイバ位置探索装置及びプログラム

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201519202D0 (en) * 2015-10-30 2015-12-16 Optasense Holdings Ltd Monitoring traffic flow
GB2560522B (en) * 2017-03-13 2022-03-16 Aiq Dienstleistungen Ug Haftungsbeschraenkt Dynamic sensitivity distributed acoustic sensing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007506960A (ja) * 2003-09-24 2007-03-22 キネテイツク・リミテツド 光ファイバ監視システム
JP2007187578A (ja) * 2006-01-13 2007-07-26 Nihon Electric Wire & Cable Co Ltd 光ファイバ型センサおよび光ファイバ型センサシステム
JP2017134681A (ja) * 2016-01-28 2017-08-03 日本ドライケミカル株式会社 火災及び侵入の検知並びに報知システム
JP2017134746A (ja) * 2016-01-29 2017-08-03 日本ドライケミカル株式会社 防災システム
US20170260839A1 (en) * 2016-03-09 2017-09-14 Conocophillips Company Das for well ranging
JP2018194372A (ja) * 2017-05-15 2018-12-06 日本電信電話株式会社 光ファイバ位置探索装置及びプログラム

Also Published As

Publication number Publication date
US20230019450A1 (en) 2023-01-19
JP7201102B2 (ja) 2023-01-10
WO2021106025A1 (ja) 2021-06-03

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