Compact photoacoustic detection device
US11906422B2 · kind B2 · utility
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14Claims
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Assignee
Inventors
Key dates
| Filing date | Nov 25, 2022 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Nov 25, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/399
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.