BE1020906B1 - FIBER OPTIC EXTENSION SENSOR. - Google Patents

FIBER OPTIC EXTENSION SENSOR.

Info

Publication number
BE1020906B1
BE1020906B1 BE20090218A BE200900218A BE1020906B1 BE 1020906 B1 BE1020906 B1 BE 1020906B1 BE 20090218 A BE20090218 A BE 20090218A BE 200900218 A BE200900218 A BE 200900218A BE 1020906 B1 BE1020906 B1 BE 1020906B1
Authority
BE
Belgium
Prior art keywords
sample
fiber optic
extension sensor
optical fiber
irradiation
Prior art date
Application number
BE20090218A
Other languages
French (fr)
Other versions
BE1020906A3 (en
Inventor
Agnès Pailloux
Julien Cousin
Original Assignee
Commissariat Energie Atomique
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 filed Critical Commissariat Energie Atomique
Application granted granted Critical
Publication of BE1020906A3 publication Critical patent/BE1020906A3/en
Publication of BE1020906B1 publication Critical patent/BE1020906B1/en

Links

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
    • G01B11/161—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by interferometric means
    • 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
    • G01D5/266—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 by interferometric means
    • 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
    • G01D5/35312—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 Fabry Perot

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

Capteur d'allongement d'un échantillon (1) comprenant un tube fixé à l'échantillon et qui englobe une cavité de Fabry-Pérot (7) desservie par une fibre optique (3). L'extrémité (4) de la fibre optique (3) et le réflecteur de lumière (5) sont en matériaux qui ne sont pas susceptibles de subir de compaction sous une irradiation, soit qu'ils y sont insensible par nature, soit qu'ils ont subi une compaction préliminaire sous irradiation les ayant amenés à un état de stabilité. La longueur de la cavité (7) change donc seulement avec l'allongement de l'échantillon (1). Des essais peuvent être entrepris sous forte irradiation et à température élevée.Elongation sensor of a sample (1) comprising a tube fixed to the sample and which includes a Fabry-Pérot cavity (7) served by an optical fiber (3). The end (4) of the optical fiber (3) and the light reflector (5) are made of materials which are not liable to be subjected to compaction under irradiation, either because they are insensitive to it by nature, or because they underwent preliminary compaction under irradiation which brought them to a state of stability. The length of the cavity (7) therefore changes only with the elongation of the sample (1). Tests can be carried out under strong irradiation and at high temperature.

BE20090218A 2008-04-07 2009-04-07 FIBER OPTIC EXTENSION SENSOR. BE1020906B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0852309 2008-04-07
FR0852309A FR2929701B1 (en) 2008-04-07 2008-04-07 FIBER OPTIC EXTENSION SENSOR.

Publications (2)

Publication Number Publication Date
BE1020906A3 BE1020906A3 (en) 2014-09-02
BE1020906B1 true BE1020906B1 (en) 2019-09-16

Family

ID=39941563

Family Applications (1)

Application Number Title Priority Date Filing Date
BE20090218A BE1020906B1 (en) 2008-04-07 2009-04-07 FIBER OPTIC EXTENSION SENSOR.

Country Status (2)

Country Link
BE (1) BE1020906B1 (en)
FR (1) FR2929701B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3075423A1 (en) 2017-12-15 2019-06-21 Orange TECHNIQUE FOR PROTECTING A CRYPTOGRAPHIC KEY USING A USER PASSWORD
FR3080175B1 (en) 2018-04-13 2020-03-20 Commissariat A L'energie Atomique Et Aux Energies Alternatives DEFORMATION MEASUREMENT OPTICAL FIBER SENSOR OPERATING IN A SEVERE ENVIRONMENT

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5182449A (en) * 1990-02-06 1993-01-26 The Boeing Corporation System and method for structural monitoring using optical imaging of fiber sensors
US6205818B1 (en) * 1996-07-26 2001-03-27 Corning Incorporated Production of fused silica having high resistance to optical damage
US6141087A (en) * 1998-12-18 2000-10-31 General Electric Company System and method for measuring engine rotor thrust using Fabry-Perot fiber sensor

Also Published As

Publication number Publication date
FR2929701B1 (en) 2011-01-07
FR2929701A1 (en) 2009-10-09
BE1020906A3 (en) 2014-09-02

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