Price-Protected High-Precision Carbon Dioxide Analyzer
Understanding global warming requires continuous field measurements of carbon dioxide concentrations. HighÂ precision measurements (one part ÂinÂ 3000 or better) are required; yet, these high Âperformance instruments must meet stringent cost objectives. A simple, rugged, photoacoustic spectrometer can provide the required measurement precision at the required volume price point. This project will develop a laser-diode-based spectrometer that can determine ambient carbon dioxide concentration to better than one part Âin Â3000 in less than one minute, while meeting a retail price of $5,000 under volume manufacturing. In Phase I, a bench-top laser diode (LD) photoacoustic spectrometer (PAS) was constructed for proof-ÂofÂ-principle testing. The excellent performance characteristics of the LDÂPAS sensor Â¿ including sensitivity, selectivity, and long term behavior Â¿ were experimentally confirmed. In Phase II, (1) fully integrated LDÂPAS sensor prototypes will be constructed for carbon dioxide field analysis; (2) standard operating protocols for the sensors will be established; and (3) the prototypes will be refined through beta Âtesting in several field applications. Commercial Applications and other Benefits as described by the awardee: In addition to measurements of atmospheric carbon dioxide, the technology should enable general-purpose trace gas detection in a variety of applications, including biomedical breath diagnostics, process gas analysis, and environmental regulatory compliance.
Small Business Information at Submission:
Vista Photonics, Inc.
67 Condesa Road Santa Fe, NM 87508
Number of Employees: