FR3120706B1 - Optical waveguide for detecting corrosion or the possibility of corrosion in a part - Google Patents

Optical waveguide for detecting corrosion or the possibility of corrosion in a part Download PDF

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Publication number
FR3120706B1
FR3120706B1 FR2102471A FR2102471A FR3120706B1 FR 3120706 B1 FR3120706 B1 FR 3120706B1 FR 2102471 A FR2102471 A FR 2102471A FR 2102471 A FR2102471 A FR 2102471A FR 3120706 B1 FR3120706 B1 FR 3120706B1
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FR
France
Prior art keywords
corrosion
optical waveguide
possibility
detecting
waveguide
Prior art date
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.)
Active
Application number
FR2102471A
Other languages
French (fr)
Other versions
FR3120706A1 (en
Inventor
Ioannis Stasinopoulos
Maya Geagea
Oscar D'almeida
Huy Minh Chau Phan
Loic Exbrayat
Nassim Salhi
Jacques Echouard
Gérald Lopez
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 FR2102471A priority Critical patent/FR3120706B1/en
Publication of FR3120706A1 publication Critical patent/FR3120706A1/en
Application granted granted Critical
Publication of FR3120706B1 publication Critical patent/FR3120706B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G01N17/04—Corrosion probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
    • G01N2021/7706—Reagent provision
    • G01N2021/7709—Distributed reagent, e.g. over length of guide
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
    • G01N2021/7706—Reagent provision
    • G01N2021/7709—Distributed reagent, e.g. over length of guide
    • G01N2021/7713—Distributed reagent, e.g. over length of guide in core
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/7703—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator using reagent-clad optical fibres or optical waveguides
    • G01N2021/7706—Reagent provision
    • G01N2021/7709—Distributed reagent, e.g. over length of guide
    • G01N2021/7716—Distributed reagent, e.g. over length of guide in cladding
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N2021/7769—Measurement method of reaction-produced change in sensor
    • G01N2021/7776—Index
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N2021/7769—Measurement method of reaction-produced change in sensor
    • G01N2021/7783—Transmission, loss

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Environmental Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

Guide d’onde optique pour la détection de la corrosion ou de la possibilité de corrosion d’une pièce L’invention concerne un guide d’onde optique (1) pour la détection de la corrosion ou de la possibilité de corrosion d’une pièce, comprenant des particules (10) encapsulant un agent modificateur (12) qui est apte à être libéré en présence d’un composé associé à la corrosion de la pièce de sorte à altérer une partie au moins de du guide d’onde optique et à modifier ainsi la propagation du signal optique (SO) dans ce guide d’onde. Figure pour l’abrégé : Fig. 1.Optical waveguide for detecting corrosion or the possibility of corrosion of a part The invention relates to an optical waveguide (1) for detecting corrosion or the possibility of corrosion of a part , comprising particles (10) encapsulating a modifying agent (12) which is capable of being released in the presence of a compound associated with the corrosion of the part so as to alter at least part of the optical waveguide and to thus modify the propagation of the optical signal (SO) in this waveguide. Figure for abstract: Fig. 1.

FR2102471A 2021-03-12 2021-03-12 Optical waveguide for detecting corrosion or the possibility of corrosion in a part Active FR3120706B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2102471A FR3120706B1 (en) 2021-03-12 2021-03-12 Optical waveguide for detecting corrosion or the possibility of corrosion in a part

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2102471A FR3120706B1 (en) 2021-03-12 2021-03-12 Optical waveguide for detecting corrosion or the possibility of corrosion in a part
FR2102471 2021-03-12

Publications (2)

Publication Number Publication Date
FR3120706A1 FR3120706A1 (en) 2022-09-16
FR3120706B1 true FR3120706B1 (en) 2024-03-01

Family

ID=77317047

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2102471A Active FR3120706B1 (en) 2021-03-12 2021-03-12 Optical waveguide for detecting corrosion or the possibility of corrosion in a part

Country Status (1)

Country Link
FR (1) FR3120706B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7628533B2 (en) * 2006-03-13 2009-12-08 SensorTran, Inc Systems and methods for detecting corrosion
US7628531B2 (en) * 2006-03-13 2009-12-08 SensorTran, Inc Methods and apparatus for dual source calibration for distributed temperature systems
FR3065463B1 (en) 2017-04-20 2020-08-07 Airbus Safran Launchers Sas NANOCAPSULES FOR DETECTION OF EARLY CORROSION

Also Published As

Publication number Publication date
FR3120706A1 (en) 2022-09-16

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