EP4732001A1 - Plateforme de capteur photoacoustique à double résonance optimisée par couplage pour la détection de gaz et leurs concentrations - Google Patents

Plateforme de capteur photoacoustique à double résonance optimisée par couplage pour la détection de gaz et leurs concentrations

Info

Publication number
EP4732001A1
EP4732001A1 EP24824836.1A EP24824836A EP4732001A1 EP 4732001 A1 EP4732001 A1 EP 4732001A1 EP 24824836 A EP24824836 A EP 24824836A EP 4732001 A1 EP4732001 A1 EP 4732001A1
Authority
EP
European Patent Office
Prior art keywords
resonant
resonant transducer
resonator cavity
transducer
acoustic
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.)
Pending
Application number
EP24824836.1A
Other languages
German (de)
English (en)
Inventor
Alaric BERGERON
Geoffroy BERGERON
Reuble MATHEW
Vahid TAYARI
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.)
Nxtsens Microsystems Inc
Original Assignee
Nxtsens Microsystems Inc
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 Nxtsens Microsystems Inc filed Critical Nxtsens Microsystems Inc
Publication of EP4732001A1 publication Critical patent/EP4732001A1/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2418—Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics
    • G01N29/2425—Probes using optoacoustic interaction with the material, e.g. laser radiation, photoacoustics optoacoustic fluid cells therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/036—Analysing fluids by measuring frequency or resonance of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/24—Probes
    • G01N29/2437—Piezoelectric probes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/32—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise
    • G01N29/326—Arrangements for suppressing undesired influences, e.g. temperature or pressure variations, compensating for signal noise compensating for temperature variations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0427—Flexural waves, plate waves, e.g. Lamb waves, tuning fork, cantilever

Landscapes

  • 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)
  • Acoustics & Sound (AREA)
  • Optics & Photonics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Système de spectroscopie photoacoustique comprenant une cellule acoustique, une unité de rayonnement électromagnétique et une unité de transducteur résonant. La cellule acoustique comprend une cavité de résonateur qui prend en charge un premier mode de résonance possédant une première fréquence de résonance, et peut être fournie avec un fluide échantillon. Le transducteur résonant prend en charge un second mode de résonance possédant une seconde fréquence de résonance, et est connecté de manière fonctionnelle à la cavité de résonateur. Le premier mode de résonance et le second mode de résonance sont configurés pour être couplés dans le régime de couplage significatif et l'accord entre le premier mode de résonance et le second mode de résonance est configuré pour produire une augmentation de l'intensité du signal ou du rapport signal sur bruit.
EP24824836.1A 2023-06-20 2024-06-19 Plateforme de capteur photoacoustique à double résonance optimisée par couplage pour la détection de gaz et leurs concentrations Pending EP4732001A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202363509211P 2023-06-20 2023-06-20
US202463626927P 2024-01-30 2024-01-30
PCT/CA2024/050827 WO2024259528A1 (fr) 2023-06-20 2024-06-19 Plateforme de capteur photoacoustique à double résonance optimisée par couplage pour la détection de gaz et leurs concentrations

Publications (1)

Publication Number Publication Date
EP4732001A1 true EP4732001A1 (fr) 2026-04-29

Family

ID=93934659

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24824836.1A Pending EP4732001A1 (fr) 2023-06-20 2024-06-19 Plateforme de capteur photoacoustique à double résonance optimisée par couplage pour la détection de gaz et leurs concentrations

Country Status (2)

Country Link
EP (1) EP4732001A1 (fr)
WO (1) WO2024259528A1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10908129B2 (en) * 2016-12-13 2021-02-02 Pendar Technologies, Llc Devices and methods for quartz enhanced photoacoustic spectroscopy

Also Published As

Publication number Publication date
WO2024259528A1 (fr) 2024-12-26

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