WO2004099713A3 - Dispositif, systeme et procede de mesure de deformations mecaniques et/ou thermiques uniaxiales au moyen d'une fibre optique a reseau de bragg - Google Patents

Dispositif, systeme et procede de mesure de deformations mecaniques et/ou thermiques uniaxiales au moyen d'une fibre optique a reseau de bragg Download PDF

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Publication number
WO2004099713A3
WO2004099713A3 PCT/FR2004/001130 FR2004001130W WO2004099713A3 WO 2004099713 A3 WO2004099713 A3 WO 2004099713A3 FR 2004001130 W FR2004001130 W FR 2004001130W WO 2004099713 A3 WO2004099713 A3 WO 2004099713A3
Authority
WO
WIPO (PCT)
Prior art keywords
lfib
lce
optical fibre
test body
deformation
Prior art date
Application number
PCT/FR2004/001130
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English (en)
Other versions
WO2004099713A2 (fr
Inventor
Laurent Morin
Original Assignee
Commissariat Energie Atomique
Laurent Morin
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 by Commissariat Energie Atomique, Laurent Morin filed Critical Commissariat Energie Atomique
Priority to JP2006505838A priority Critical patent/JP2006525501A/ja
Priority to EP04742687A priority patent/EP1620697A2/fr
Priority to US10/555,630 priority patent/US7406877B2/en
Publication of WO2004099713A2 publication Critical patent/WO2004099713A2/fr
Publication of WO2004099713A3 publication Critical patent/WO2004099713A3/fr

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Classifications

    • 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
    • G01D5/35303—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 a reference fibre, e.g. interferometric devices
    • 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
    • G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
    • 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
    • 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
    • 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
    • G01D5/35306—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 an interferometer arrangement
    • G01D5/35309—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 an interferometer arrangement using multiple waves interferometer
    • G01D5/35316—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 an interferometer arrangement using multiple waves interferometer using a Bragg gratings
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
    • G01K5/50—Measuring temperature based on the expansion or contraction of a material the material being a solid arranged for free expansion or contraction
    • 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
    • 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
    • G01L1/246—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 using integrated gratings, e.g. Bragg gratings

Abstract

Dispositif de mesure de déformations uniaxiales comprenant un tronçon de fibre optique muni d'au moins un réseau de Bragg aligné selon la direction de l'axe de mesure, et un corps d'épreuve soumis aux déformations à mesurer et les transmettant au tronçon de fibre optique, ce dispositif étant caractérisé en ce que : les points de fixation aptes à soumettre ce tronçon de fibre à une précontrainte négative, positive ou nulle, et à lui transmettre les élongations du corps d'épreuve, sont séparés par une distance (Lfib) présentant une variation ( ΔLfib) lorsque le corps d'épreuve est sollicité par la déformation à mesurer, la longueur effective (LCe) du corps d'épreuve présente une élongation (ΔLCe), lorsque le corps d'épreuve est sollicité par la déformation à mesurer, - la longueur (Lfib) du tronçon de fibre optique et la longueur effective (LCe) du corps de mesure sont telles que la déformation longitudinale ( ΔLfib/Lfib) du tronçon de la fibre optique est strictement supérieure à la déformation (ΔLCe/Lce) du corps d'épreuve qui en est à l'origine, définissant ainsi un coefficient d'amplification K strictement supérieur à 1, et égal au premier ordre au quotient (ΔLfib/Lfib) /( ΔLce/Lce).
PCT/FR2004/001130 2003-05-07 2004-05-07 Dispositif, systeme et procede de mesure de deformations mecaniques et/ou thermiques uniaxiales au moyen d'une fibre optique a reseau de bragg WO2004099713A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006505838A JP2006525501A (ja) 2003-05-07 2004-05-07 ブラッググレーティング光ファイバを使用する１軸性の熱的および／または機械的な変形測定用の装置、システム、および方法
EP04742687A EP1620697A2 (fr) 2003-05-07 2004-05-07 Dispositif, systeme et procede de mesure de deformations mecaniques et/ou thermiques uniaxiales au moyen d une fibre optique a reseau de bragg
US10/555,630 US7406877B2 (en) 2003-05-07 2004-11-18 Uniaxial thermal and/or mechanical deformation-measuring device system and method employing a Bragg grating optical fibre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR03/05584 2003-05-07
FR0305584A FR2854689B1 (fr) 2003-05-07 2003-05-07 Dispositif, systeme et procede de mesure de deformations mecaniques et/ou thermiques uniaxiales au moyen d'une fibre optique a reseau de bragg

Publications (2)

Publication Number Publication Date
WO2004099713A2 WO2004099713A2 (fr) 2004-11-18
WO2004099713A3 true WO2004099713A3 (fr) 2005-05-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2004/001130 WO2004099713A2 (fr) 2003-05-07 2004-05-07 Dispositif, systeme et procede de mesure de deformations mecaniques et/ou thermiques uniaxiales au moyen d'une fibre optique a reseau de bragg

Country Status (6)

Country Link
US (1) US7406877B2 (fr)
EP (1) EP1620697A2 (fr)
JP (1) JP2006525501A (fr)
KR (1) KR20060014042A (fr)
FR (1) FR2854689B1 (fr)
WO (1) WO2004099713A2 (fr)

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JP5385516B2 (ja) * 2007-07-10 2014-01-08 エヌ・ティ・ティ・インフラネット株式会社 変形量センサ、変形量測定装置、変形量測定方法
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EP2128571B1 (fr) * 2008-05-28 2014-07-23 Smartec SA Jauge de contraint à fibre optique avec couplage de contrainte distribuée
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FR2959309B1 (fr) * 2010-04-22 2012-06-29 Commissariat Energie Atomique Dispositif de mesure combinee de pression et de temperature faiblement intrusif
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KR102059967B1 (ko) 2018-03-16 2019-12-27 한국과학기술연구원 온도 및 스트레인의 동시 측정을 위한 광섬유 복합 공진 구조체
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US20030038231A1 (en) * 1998-06-26 2003-02-27 Bryant Rebecca S. Non-intrusive fiber optic pressure sensor for measuring unsteady pressure within a pipe
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Publication number Publication date
US7406877B2 (en) 2008-08-05
EP1620697A2 (fr) 2006-02-01
JP2006525501A (ja) 2006-11-09
US20070107529A1 (en) 2007-05-17
WO2004099713A2 (fr) 2004-11-18
FR2854689A1 (fr) 2004-11-12
KR20060014042A (ko) 2006-02-14
FR2854689B1 (fr) 2005-09-02

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