COMPACT PHOTOACOUSTIC DETECTION DEVICE

The invention relates to a device for detecting a gaseous species by photoacoustic effect. The device comprises a substrate, inside which a cavity is formed. A light source is disposed on the substrate, in such a way that a part of the substrate extends between the light source and the cavity. The d...

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Bibliographic Details
Main Authors OLLIER, Emmanuel, VERDOT, Thierry, DURAFFOURG, Laurent, COUTIER, Caroline
Format Patent
LanguageEnglish
Published 01.06.2023
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:The invention relates to a device for detecting a gaseous species by photoacoustic effect. The device comprises a substrate, inside which a cavity is formed. A light source is disposed on the substrate, in such a way that a part of the substrate extends between the light source and the cavity. The device is arranged in such a way that the light, emitted by the light source, is propagated through the substrate, before reaching the cavity.
Bibliography:Application Number: US202218058803