Laser sensor for trace gas detection
US10241037B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2015 |
| Grant date | Mar 26, 2019 |
| Priority date | — |
| Expiry date | Oct 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/1248
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods are disclosed to determine the concentration of a species within a sample. An example method may include collecting optical loss data over a range of frequencies from the sample using a spectroscopy system; placing the optical loss data into a plurality of bins, each bin having a defined frequency width; determining an average optical loss data value for the optical loss values within each bin that have an optical loss value less than a threshold value; removing the optical loss data within each bin having a value outside a tolerance range bounding the average optical loss data value for the respective bin; fitting a spectral curve to the remaining optical loss data; and determining the concentration of the species within the sample based on the spectral curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.