FR3089008B1 - Detector with modular opto-acoustic measurement cells enhanced by quartz resonator - Google Patents

Detector with modular opto-acoustic measurement cells enhanced by quartz resonator Download PDF

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Publication number
FR3089008B1
FR3089008B1 FR1871734A FR1871734A FR3089008B1 FR 3089008 B1 FR3089008 B1 FR 3089008B1 FR 1871734 A FR1871734 A FR 1871734A FR 1871734 A FR1871734 A FR 1871734A FR 3089008 B1 FR3089008 B1 FR 3089008B1
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FR
France
Prior art keywords
box
detector
resonator
quartz resonator
opto
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
FR1871734A
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French (fr)
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FR3089008A1 (en
Inventor
Aurore Vicet
Roman Rousseau
Mathias Digneton
Erwan Terrier
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.)
Cmr Group
Centre National de la Recherche Scientifique CNRS
Universite de Montpellier I
Universite de Montpellier
Original Assignee
Cmr Group
Centre National de la Recherche Scientifique CNRS
Universite de Montpellier I
Universite de Montpellier
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Publication date
Application filed by Cmr Group, Centre National de la Recherche Scientifique CNRS, Universite de Montpellier I, Universite de Montpellier filed Critical Cmr Group
Priority to FR1871734A priority Critical patent/FR3089008B1/en
Priority to PCT/EP2019/082312 priority patent/WO2020104689A1/en
Publication of FR3089008A1 publication Critical patent/FR3089008A1/en
Application granted granted Critical
Publication of FR3089008B1 publication Critical patent/FR3089008B1/en
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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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
    • G01N2021/1704—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids in gases
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1702—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids
    • G01N2021/1708—Systems in which incident light is modified in accordance with the properties of the material investigated with opto-acoustic detection, e.g. for gases or analysing solids with piezotransducers

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

L’invention concerne une cellule opto-acoustique pour la mesure de la concentration d’au moins une espèce gazeuse comprenant un boitier, un diapason à quartz de mesure et un micro-résonateur, ledit diapason à quartz et ledit micro-résonateur étant disposés au voisinage l’un de l’autre selon une configuration « off-beam » à l’intérieur dudit boitier, ledit boitier comportant au moins une lentille pour l’introduction et la focalisation d’un signal lumineux à l’intérieur du boitier, au moins une longueur d’onde dudit signal lumineux correspondant à un pic d’absorption d’une espèce gazeuse à détecter, ledit boitier comportant au moins deux ouvertures opposées, l’une d’entrée des gaz, l’autre de sortie des gaz, ledit boitier comportant également des éléments de connexion mécanique aptes à permettre le raccordement étanche dudit boitier, par au moins une desdites ouvertures, à un ou plusieurs autres boitiers similaires, la cellule constituant ainsi un module raccordable à un ou plusieurs autres modules similaires afin de former avec celui-ci ou ceux-ci un conduit continu pour le flux de gaz. Figure pour l’abrégé : [Fig. 7]The invention relates to an opto-acoustic cell for measuring the concentration of at least one gaseous species comprising a housing, a measuring quartz tuning fork and a micro-resonator, said quartz tuning fork and said micro-resonator being arranged in the middle. neighborhood of each other according to an "off-beam" configuration inside said box, said box comprising at least one lens for the introduction and focusing of a light signal inside the box, at the at least one wavelength of said light signal corresponding to an absorption peak of a gaseous species to be detected, said box comprising at least two opposite openings, one for the gas inlet, the other for the gas outlet, said box also comprising mechanical connection elements capable of allowing the sealed connection of said box, by at least one of said openings, to one or more other similar boxes, the cell thus constituting a module that can be connected to one or more other res similar modules in order to form therewith a continuous conduit for the gas flow. Figure for the abstract: [Fig. 7]

FR1871734A 2018-11-23 2018-11-23 Detector with modular opto-acoustic measurement cells enhanced by quartz resonator Active FR3089008B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1871734A FR3089008B1 (en) 2018-11-23 2018-11-23 Detector with modular opto-acoustic measurement cells enhanced by quartz resonator
PCT/EP2019/082312 WO2020104689A1 (en) 2018-11-23 2019-11-22 Modular cell detector for optoacoustic measurement enhanced by quartz resonator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1871734A FR3089008B1 (en) 2018-11-23 2018-11-23 Detector with modular opto-acoustic measurement cells enhanced by quartz resonator

Publications (2)

Publication Number Publication Date
FR3089008A1 FR3089008A1 (en) 2020-05-29
FR3089008B1 true FR3089008B1 (en) 2021-04-23

Family

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Family Applications (1)

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FR1871734A Active FR3089008B1 (en) 2018-11-23 2018-11-23 Detector with modular opto-acoustic measurement cells enhanced by quartz resonator

Country Status (2)

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FR (1) FR3089008B1 (en)
WO (1) WO2020104689A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4060323A1 (en) * 2021-03-17 2022-09-21 Stichting IMEC Nederland A device and a method for light-based analysis of a substance in a liquid sample
CN114018829B (en) * 2021-10-27 2024-05-10 国网四川省电力公司电力科学研究院 Double-optical comb multicomponent gas detection system with tuning fork resonance enhancement

Also Published As

Publication number Publication date
WO2020104689A1 (en) 2020-05-28
FR3089008A1 (en) 2020-05-29

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