JP7637395B2 - 形状測定システム及び形状測定方法 - Google Patents

形状測定システム及び形状測定方法 Download PDF

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Publication number
JP7637395B2
JP7637395B2 JP2023569212A JP2023569212A JP7637395B2 JP 7637395 B2 JP7637395 B2 JP 7637395B2 JP 2023569212 A JP2023569212 A JP 2023569212A JP 2023569212 A JP2023569212 A JP 2023569212A JP 7637395 B2 JP7637395 B2 JP 7637395B2
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Japan
Prior art keywords
optical fiber
core optical
shape
strain distribution
strain
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JP2023569212A
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English (en)
Japanese (ja)
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JPWO2023120055A1 (https=
Inventor
信智 半澤
和秀 中島
隆 松井
英晶 村山
良太 和田
真輝人 小林
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.)
University of Tokyo NUC
NTT Inc
NTT Inc USA
Original Assignee
Nippon Telegraph and Telephone Corp
University of Tokyo NUC
NTT Inc USA
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    • 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
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
    • 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
    • G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
    • 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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02042—Multicore optical fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
JP2023569212A 2021-12-24 2022-11-29 形状測定システム及び形状測定方法 Active JP7637395B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021210127 2021-12-24
JP2021210127 2021-12-24
PCT/JP2022/043879 WO2023120055A1 (ja) 2021-12-24 2022-11-29 形状測定システム及び形状測定方法

Publications (2)

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JPWO2023120055A1 JPWO2023120055A1 (https=) 2023-06-29
JP7637395B2 true JP7637395B2 (ja) 2025-02-28

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JP2023569212A Active JP7637395B2 (ja) 2021-12-24 2022-11-29 形状測定システム及び形状測定方法

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US (1) US20250060213A1 (https=)
EP (1) EP4455617A4 (https=)
JP (1) JP7637395B2 (https=)
WO (1) WO2023120055A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025047077A1 (ja) * 2023-08-28 2025-03-06 日本電信電話株式会社 測定システム、測定方法、及び、解析装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002185063A (ja) 2000-12-14 2002-06-28 Hitachi Cable Ltd 希土類元素添加光ファイバ及びそれを用いた光デバイス
WO2021246497A1 (ja) 2020-06-05 2021-12-09 日本電信電話株式会社 形状測定システム及び形状測定方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001324358A (ja) * 2000-05-12 2001-11-22 Fujikura Ltd 光ファイバセンサ
US7930065B2 (en) * 2005-12-30 2011-04-19 Intuitive Surgical Operations, Inc. Robotic surgery system including position sensors using fiber bragg gratings
US7324714B1 (en) * 2007-04-11 2008-01-29 The United States Of America As Represented By The Secretary Of The Navy Multicore fiber curvature sensor
US8910391B2 (en) * 2013-01-24 2014-12-16 Faro Technologies, Inc. Non-articulated portable CMM
JP6346852B2 (ja) * 2014-11-27 2018-06-20 日本電信電話株式会社 光ファイバの曲げ形状測定装置及びその曲げ形状測定方法
US10302463B2 (en) * 2015-11-19 2019-05-28 Corning Incorporated Distributed fiber sensors and systems employing multicore optical fibers
US10581216B2 (en) * 2016-05-25 2020-03-03 Nec Corporation 3D waveguide for efficient coupling of multimode pump and signals to a multicore fiber amplifier
EP3482154B1 (en) * 2016-07-08 2024-03-06 Intuitive Surgical Operations, Inc. Calculation of redundant bend in multi-core fiber for safety
JP7306565B2 (ja) * 2020-03-05 2023-07-11 日本電信電話株式会社 テープ心線を用いた測定装置及び測定方法
JP7627912B2 (ja) * 2020-11-05 2025-02-07 日本電信電話株式会社 線状構造物の挙動を算出する装置及び方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002185063A (ja) 2000-12-14 2002-06-28 Hitachi Cable Ltd 希土類元素添加光ファイバ及びそれを用いた光デバイス
WO2021246497A1 (ja) 2020-06-05 2021-12-09 日本電信電話株式会社 形状測定システム及び形状測定方法

Also Published As

Publication number Publication date
WO2023120055A1 (ja) 2023-06-29
US20250060213A1 (en) 2025-02-20
EP4455617A1 (en) 2024-10-30
JPWO2023120055A1 (https=) 2023-06-29
EP4455617A4 (en) 2025-12-17

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