Patent ID: 11874170
Assignee: PROJECT CANARY, PBC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. A system for air quality monitoring, the system comprising:
a light source that emits light rays;
a cell to accept light rays emitted from the light source,
wherein the cell accepts analyte gas, and the cell comprising:
a gas trap to:
adjust a flow rate of the analyte gas passing through the cell;

two reflective surfaces located at opposite ends of the cell,
wherein the two reflective surfaces are to repeatedly reflect the light rays along a path across the cell and to direct the light rays into at least one sensor in response to repeated reflections;
wherein a first spectra signal and a second spectra signal is generated in response to directing the light rays into the at least one sensor; and

a processing module to:
deconvolute the first spectra signal and the second spectra signal based on properties of the light source emitting the light rays and optical properties of the at least one sensor at current temperature and pressure within the cell to generate a deconvoluted first spectra signal and a deconvoluted second spectra signal; and
determine a gaseous chemical based on the deconvoluted first spectra signal.