Method for optimisation of detection wavelengths for multi-gas detection
US10337986B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2016 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Nov 27, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/12746
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for optimizing values of n detection wavelengths of an optical gas sensor configured to detect n different gases is provided, including: a) calculating a value of a determinant of an absorptivity matrix ε whose coefficients represent spectral absorptivity of each of the n different gases at the n detection wavelengths, the calculating being repeated several times, each time modifying at least one of said n detection wavelengths so the values of said n detection wavelengths are comprised within a range of values for which the spectral absorptivity of at least one of the n different gases is non-zero; and b) determining the values of said n detection wavelengths for which the calculated value of the determinant of the absorptivity matrix ε corresponds to a maximum calculated value amongst a set of values calculated in step a).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.