Correlation spectrometer
US7697134B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2006 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Jun 25, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/4242
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A correlation spectrometer can detect a large number of gaseous compounds, or chemical species, with a species-specific mask wheel. In this mode, the spectrometer is optimized for the direct measurement of individual target compounds. Additionally, the spectrometer can measure the transmission spectrum from a given sample of gas. In this mode, infrared light is passed through a gas sample and the infrared transmission signature of the gasses present is recorded and measured using Hadamard encoding techniques. The spectrometer can detect the transmission or emission spectra in any system where multiple species are present in a generally known volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.