Photoacoustic gas sensor utilizing diffusion
US7106445B2 · kind B2 · utility
2Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 6, 2003 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Jun 7, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/1704
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a photoacoustic gas sensor utilizing diffusion having a sensing volume and an acoustic pressure sensor volume containing an acoustic pressure sensor such that the fluid connection between the sensing volume and the acoustic pressure sensor volume restricts the flow of analyte gas therethrough but does not restrict the transmission of the photoacoustic signal therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.