Infrared sensor with multiple sources for gas measurement
US8785857B2 · kind B2 · utility
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43References
20Claims
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Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Feb 16, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0662
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A closed path infrared sensor includes an enclosure, a first energy source within the enclosure, at least a second energy source within the enclosure, at least one detector system within the enclosure and a mirror system external to the enclosure and spaced from the enclosure. The mirror system reflects energy from the first energy source to the at least one detector system via a first analytical path and reflects energy from the second energy source to the at least one detector system via a second analytical path. Each of the first analytical path and the second analytical path are less than two feet in length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.