Device for detecting an analyte via photoacoustic detection

Device for detecting an analyte via photoacoustic detection

Photoacoustic detecting device (1), intended to be applied, via a contact face (3), against a medium to be analysed, the device comprising:a hollow cavity (20) comprising a first aperture (22) produced in the contact face, the cavity being bounded by a containment shell (21) that extends around the...

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Hauptverfasser: Teulle, Alexandre, Coutard, Jean-Guillaume, Gliere, Alain, Duraffourg, Laurent
Format: Patent
Sprache:eng
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator Teulle, Alexandre
Coutard, Jean-Guillaume
Gliere, Alain
Duraffourg, Laurent
description Photoacoustic detecting device (1), intended to be applied, via a contact face (3), against a medium to be analysed, the device comprising:a hollow cavity (20) comprising a first aperture (22) produced in the contact face, the cavity being bounded by a containment shell (21) that extends around the first aperture;a pulsed or amplitude-modulated light source (10) configured to emit, in an emission spectral band (Δλ), an incident light wave (11) through the cavity (20) to the first aperture;an acoustic transducer (28) linked to the cavity and configured to detect a photoacoustic wave (12) extending through the cavity.The photoacoustic detecting device is optimized to increase the amplitude of the photoacoustic wave detected by the acoustic transducer.
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title Device for detecting an analyte via photoacoustic detection
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