Infrared gas detection and spectral analysis method
US7956761B2 · kind B2 · utility
6Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | May 29, 2007 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Apr 6, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/1293
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas detection system and method for analysis of infrared gas spectra is used for chemical threat detection, quantification and alarm, using a chemical library, a chemical threat list, and a background model that incorporates the data history, allows spectra containing interferent signals into the background model, the model being updated using delay buffering to prevent threat spectra incorporation and using exponential decays to preferentially represent recent background history, all computed in the logarithmic space for rapid detection and alarm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.