Optical absorption gas sensor
US8193502B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2008 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Mar 21, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3166
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical absorption gas sensor comprising a body having an internal wall which defines a chamber, at least one aperture in the body through which a gas sample can enter the chamber, a light source, at least one reflector, a detector assembly which extends into the chamber and has a first side and an opposite second side, a detector which measures light which is incident at least a range of angles on at least a part of a first surface of the detector assembly on the first side of the detector assembly, wherein the light source is located within the chamber on the second side of the detector assembly, the whole being configured such that light from the light source passes through the gas sample and is reflected around the detector assembly, by the at least one reflector, onto the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.