FR3117591B1 - Dispositif de mesure de deplacement mecanique d’une piece - Google Patents

Dispositif de mesure de deplacement mecanique d’une piece Download PDF

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Publication number
FR3117591B1
FR3117591B1 FR2012966A FR2012966A FR3117591B1 FR 3117591 B1 FR3117591 B1 FR 3117591B1 FR 2012966 A FR2012966 A FR 2012966A FR 2012966 A FR2012966 A FR 2012966A FR 3117591 B1 FR3117591 B1 FR 3117591B1
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FR
France
Prior art keywords
bragg grating
movable member
mechanical displacement
measurement
fixed
Prior art date
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Active
Application number
FR2012966A
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English (en)
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FR3117591A1 (fr
Inventor
Nassim Salhi
Huy Minh Chau Phan
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.)
Safran SA
Original Assignee
Safran SA
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 Safran SA filed Critical Safran SA
Priority to FR2012966A priority Critical patent/FR3117591B1/fr
Priority to PCT/FR2021/052250 priority patent/WO2022123182A1/fr
Publication of FR3117591A1 publication Critical patent/FR3117591A1/fr
Application granted granted Critical
Publication of FR3117591B1 publication Critical patent/FR3117591B1/fr
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Classifications

    • 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
    • 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
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

L’invention propose un dispositif de mesure de déplacement mécanique (10) d’au moins une pièce (50), comprenant :- au moins un capteur à fibre optique (20) comportant au moins un premier réseau de Bragg (30a) et au moins un deuxième réseau de Bragg (30b), - un organe élastiquement déformable (40) équipé du capteur (20), et- un organe mobile (60) solidaire de l’organe (40) et comprenant une première extrémité longitudinale (60a) de l’organe mobile configurée pour être fixée à la pièce (50). De plus, le premier réseau de Bragg (30a) s’étend entre l’organe mobile (60) et une première extrémité (42) de l’organe (40) et le deuxième réseau de Bragg s’étend entre l’organe mobile (60) et une deuxième extrémité (44) de l’organe (40). Le dispositif (10) comprend en outre un support fixe (70) auquel sont fixées la première extrémité (42) et la deuxième extrémité (44) de l’organe (40). Figure pour l'abrégé : Figure 2
FR2012966A 2020-12-10 2020-12-10 Dispositif de mesure de deplacement mecanique d’une piece Active FR3117591B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2012966A FR3117591B1 (fr) 2020-12-10 2020-12-10 Dispositif de mesure de deplacement mecanique d’une piece
PCT/FR2021/052250 WO2022123182A1 (fr) 2020-12-10 2021-12-09 Dispositif de mesure de deplacement mecanique d'une piece

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2012966A FR3117591B1 (fr) 2020-12-10 2020-12-10 Dispositif de mesure de deplacement mecanique d’une piece
FR2012966 2020-12-10

Publications (2)

Publication Number Publication Date
FR3117591A1 FR3117591A1 (fr) 2022-06-17
FR3117591B1 true FR3117591B1 (fr) 2022-11-18

Family

ID=74347392

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2012966A Active FR3117591B1 (fr) 2020-12-10 2020-12-10 Dispositif de mesure de deplacement mecanique d’une piece

Country Status (2)

Country Link
FR (1) FR3117591B1 (fr)
WO (1) WO2022123182A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19712407A1 (de) * 1997-03-25 1998-10-01 Gloetzl Ges Fuer Baumestechnik Wegmeßvorrichtung
AU2008336251C1 (en) * 2007-12-11 2014-04-10 Commonwealth Scientific And Industrial Research Organisation An apparatus for sensing a motion
FR2983954B1 (fr) * 2011-12-13 2014-09-12 Renault Sa Ressort avec capteur de deformation integre.
JP2017198628A (ja) * 2016-04-28 2017-11-02 株式会社コアシステムジャパン 変位計

Also Published As

Publication number Publication date
WO2022123182A1 (fr) 2022-06-16
FR3117591A1 (fr) 2022-06-17

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