[go: up one dir, main page]

FR3143112B1 - Device for measuring a physical quantity using the optical Vernier effect - Google Patents

Device for measuring a physical quantity using the optical Vernier effect Download PDF

Info

Publication number
FR3143112B1
FR3143112B1 FR2212884A FR2212884A FR3143112B1 FR 3143112 B1 FR3143112 B1 FR 3143112B1 FR 2212884 A FR2212884 A FR 2212884A FR 2212884 A FR2212884 A FR 2212884A FR 3143112 B1 FR3143112 B1 FR 3143112B1
Authority
FR
France
Prior art keywords
vernier effect
physical quantity
pitch
bragg grating
measuring
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
FR2212884A
Other languages
French (fr)
Other versions
FR3143112A1 (en
Inventor
Romain Cotillard
Nicolas Roussel
Guillaume Laffont
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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 a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR2212884A priority Critical patent/FR3143112B1/en
Priority to PCT/EP2023/081337 priority patent/WO2024120735A1/en
Publication of FR3143112A1 publication Critical patent/FR3143112A1/en
Application granted granted Critical
Publication of FR3143112B1 publication Critical patent/FR3143112B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G01D5/35354—Sensor working in reflection
    • G01D5/35367—Sensor working in reflection using reflected light other than backscattered to detect the measured quantity
    • 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
    • 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
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02123—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating
    • 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
    • G02B6/024—Optical fibres with cladding with or without a coating with polarisation maintaining properties

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Transform (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

Dispositif de mesure d’une grandeur physique utilisant l’effet Vernier optique Ce dispositif comporte : - un premier réseau de Bragg (20) présentant un premier pas, - une unité électronique (40) configurée pour calculer une mesure de la variation de la grandeur physique à partir de l’enveloppe d’un spectre de puissance d’un signal modulé par effet Vernier. Ce signal modulé par effet Vernier correspondant à la superposition : - d’un signal mesuré résultant d’une interaction d’un signal optique émis avec le premier réseau de Bragg, et - d’un signal étalon correspondant à l’interaction du même signal optique émis avec un second réseau de Bragg dont le pas est différent du premier pas. Le premier pas est telle que le spectre de puissance du premier réseau de Bragg présente plusieurs harmoniques discernables d’ordre supérieur à cent à l’intérieur d’une plage de longueurs d’onde d’intérêt située entre 200 nm à 5000 nm. Fig. 1Device for measuring a physical quantity using the optical Vernier effect This device comprises: - a first Bragg grating (20) having a first pitch, - an electronic unit (40) configured to calculate a measurement of the variation of the physical quantity from the envelope of a power spectrum of a signal modulated by the Vernier effect. This signal modulated by the Vernier effect corresponds to the superposition: - of a measured signal resulting from an interaction of an optical signal emitted with the first Bragg grating, and - of a standard signal corresponding to the interaction of the same optical signal emitted with a second Bragg grating whose pitch is different from the first pitch. The first pitch is such that the power spectrum of the first Bragg grating has several discernible harmonics of order greater than one hundred within a range of wavelengths of interest located between 200 nm and 5000 nm. Fig. 1

FR2212884A 2022-12-07 2022-12-07 Device for measuring a physical quantity using the optical Vernier effect Active FR3143112B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2212884A FR3143112B1 (en) 2022-12-07 2022-12-07 Device for measuring a physical quantity using the optical Vernier effect
PCT/EP2023/081337 WO2024120735A1 (en) 2022-12-07 2023-11-09 Device for measuring a physical quantity using the optical vernier effect

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2212884 2022-12-07
FR2212884A FR3143112B1 (en) 2022-12-07 2022-12-07 Device for measuring a physical quantity using the optical Vernier effect

Publications (2)

Publication Number Publication Date
FR3143112A1 FR3143112A1 (en) 2024-06-14
FR3143112B1 true FR3143112B1 (en) 2025-02-28

Family

ID=85570206

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2212884A Active FR3143112B1 (en) 2022-12-07 2022-12-07 Device for measuring a physical quantity using the optical Vernier effect

Country Status (2)

Country Link
FR (1) FR3143112B1 (en)
WO (1) WO2024120735A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257677A1 (en) 1972-11-24 1974-05-30 Hoechst Ag NETWORKED COPOLYMERISATES AS VIBRATION-DAMPING MATERIAL
US6448551B1 (en) * 1999-11-29 2002-09-10 Weatherford/Lamb, Inc. Fiber Bragg grating sensor system having enhanced strain-to-wavelength responsivity by using a spectral beating based vernier effect
FR3082954B1 (en) * 2018-06-21 2021-03-12 Commissariat Energie Atomique BRAGG NETWORK FIBER OPTIC SENSOR ASSOCIATED WITH A DIFFUSING STRUCTURE AND METHODS FOR LOCATING AND INSTALLING SUCH A SENSOR
FR3087008B1 (en) 2018-10-08 2021-01-01 Commissariat Energie Atomique BRAGG NETWORK TEMPERATURE SENSOR INSENSITIVE TO DEFORMATION
CN211603608U (en) 2020-02-25 2020-09-29 江苏师范大学 Femtosecond laser direct-writing fiber grating preparation device based on machine learning image recognition

Also Published As

Publication number Publication date
FR3143112A1 (en) 2024-06-14
WO2024120735A1 (en) 2024-06-13

Similar Documents

Publication Publication Date Title
US11300452B2 (en) Spectral measurement method, spectral measurement system, and broadband pulsed light source unit
CN101923162A (en) Raman lidar calibration device and calibration method
CN107991269B (en) Multi-component gas monitoring system, method and device
JP2008002815A (en) Wavelength change pulse light generator and optical tomography measurement apparatus using the same
US6643011B2 (en) SNR calculation method and optical spectrum measurement apparatus
CN104793218A (en) Laser radar device for detecting atmospheric temperature based on vibration-rotation Raman spectrum
CN1318742A (en) Optical system for simultaneous detecting calibration system and test signal in optical spectrum analyser
CN110501141A (en) Device and method for measuring transmittance curve of FP by using frequency comb light source
US6603549B2 (en) Convolution method for measuring laser bandwidth
CN102628946A (en) Atmospheric sulfur dioxide and ozone profile Raman-Rayleigh/Lamy multifunctional laser radar measuring device and detection method
US20200408692A1 (en) Raman spectroscopy method and apparatus using broadband excitation light
FR3143112B1 (en) Device for measuring a physical quantity using the optical Vernier effect
JP5186635B2 (en) Plant water stress measurement method
JPS5811567B2 (en) Back ground
DE102004020265A1 (en) Laser monitoring using both the reflected and transmitted interference structures of an etalon
CN108303407A (en) Become wavelength excitation and the adjustable Raman spectrometer of spectral region and calibration joining method
CN107515389A (en) A kind of satellite-bone laser radar detector high-precision calibration system
Fujii et al. Instantaneous CARS thermometry in turbulent flames
Gross et al. The two‐photon absorptivity of rotational transitions in the A 2Σ+(v′= 0)–X 2Π (v′′= 0) gamma band of nitric oxide
JPS58223041A (en) Spectroscopic analyzer
CN114910749A (en) Spectrum-adjustable simulated local discharge pulse light source and method
RU208295U1 (en) Device for measuring the output characteristics of fiber-optic photoacoustic emitters
CN202583462U (en) Atmospheric ozone profile Raman-Rayleigh/M laser radar measurement device
Kuvaldin Calibration of Radiation Sources and Detectors Over a Broad Range of Measurement of the Energy of Optical Radiation
JPS63308543A (en) Scattered light measuring apparatus

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20240614

PLFP Fee payment

Year of fee payment: 3