Spectral fitting of compact laser-based trace gas sensor measurements for high dynamic range (HDR)
US12392680B2 · kind B2 · utility
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Key dates
| Filing date | Sep 19, 2020 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Oct 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0214
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems, devices, and methods for scanning a laser into wings of an absorption feature; fitting a polynomial to the edges of the scan; dividing a transmitted signal by a fit-derived baseline to compute a transmission of the light; fitting a spectral model with the transmitted signal; and solving for a mole fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.