Gas sensor with slotted diffusive gas sample chamber
US6882426B1 · kind B1 · utility
3Cited by
6References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2002 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Apr 11, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/03
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A diffusion-type gas sensor is disclosed. The sample chamber uses a narrow slot as a gas diffusion port. The slot is advantageous as it can be formed during extrusion of chamber stock material, instead of during subsequent machining steps that are costly and may adversely affect the chamber surfaces. Further, the slot profile can be designed according to various profiles and/or positions that can improve gas diffusion, chamber reflection efficiency, or both, as compared to conventional ported chamber designs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.