Chemical species detection including a multisection laser for improved process monitoring
AssigneeAmerican Air Liquide, Inc.
InventorWilliam Von Drasek
Life of this patent
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Abstract
A gas species monitoring system includes a laser system, where the laser system includes a multisection DBR laser, and a plurality of measurement points disposed at different locations within the system. The laser system is configured to selectively deliver a laser beam from the multisection DBR laser to each measurement point within the system to determine a concentration of at least one gas species at each measurement point. A chemical detection grid is aligned with the ITU-GRID to facilitate use of a multisection DRB laser that operates within one or more of the defined bands of the ITU-GRID.
Claims19
A gas species monitoring system comprising:
- a laser system comprising a multisection DBR laser;
- and
- a plurality of measurement points disposed at different locations within the system;
- wherein the laser system is configured to selectively deliver a laser beam from the multisection DBR laser to each measurement point within the gas species monitoring system to determine a concentration of at least one gas species at each measurement point.
A method of monitoring one or more gas species at one or more measurement points, comprising:
- directing a laser beam from a multisection DBR laser to a first measurement point to facilitate a measurement of at least one gas species at the first measurement point;
- and
- directing a laser beam from the multisection DBR laser to a second measurement point to facilitate a measurement of at least one gas species at the second measurement point;
- wherein at least one of a temperature and a gas species differs at each of the first and second measurement points.
Dependencies are inferred from the claim text.