Filtering to measure gas concentrations from spectral features
US6615142B1 · kind B1 · utility
32Cited by
8References
38Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2000 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | Feb 25, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A spectrographic apparatus and method comprising providing a spectrometer, digitizing a sample spectrum in a spectral range that includes at least one feature of an analyte, and comparing, via a linear least squares computation, the sample spectrum to a spectrum known to closely approximate the sample spectrum at a reference condition and to one or more derivatives of the known spectrum taken with respect to one or more parameters of the reference condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.