The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2024
Filed:
Nov. 25, 2022
Applicant:
Commissariat À L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Inventors:
Emmanuel Ollier, Grenoble, FR;
Caroline Coutier, Grenoble, FR;
Laurent Duraffourg, Grenoble, FR;
Thierry Verdot, Grenoble, FR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/17 (2006.01); G01N 21/39 (2006.01);
U.S. Cl.
CPC ...
G01N 21/1702 (2013.01); G01N 2021/1704 (2013.01); G01N 2021/399 (2013.01);
Abstract
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.