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Proceedings Paper

Early fire sensing using near-IR diode laser spectroscopy
Author(s): David S. Bomse; D. Christian Hovde; Shin-Juh Chen; Joel A. Silver
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Paper Abstract

We describe research leading to a trace gas detection system based on optical absorption using near-IR diode lasers that is intended to provide early warning of incipient fires. Applications include "high loss" structures such as office buildings, hospitals, hotels and shopping malls as well as airplanes and manned spacecraft where convention smoke detectors generate unacceptably high false alarm rates. Simultaneous or near-simultaneous detection of several gases (typically carbon dioxide, carbon monoxide, acetylene and hydrogen cyanide) provides high sensitivity while reducing the chance of false alarms. Continuous measurement of carbon dioxide concentrations also provides an internal check of instrument performance because ambient levels will not drop below ~350 ppm.

Paper Details

Date Published: 23 September 2002
PDF: 9 pages
Proc. SPIE 4817, Diode Lasers and Applications in Atmospheric Sensing, (23 September 2002); doi: 10.1117/12.452097
Show Author Affiliations
David S. Bomse, Southwest Sciences, Inc. (United States)
D. Christian Hovde, Southwest Sciences, Inc. (United States)
Shin-Juh Chen, Southwest Sciences, Inc. (United States)
Joel A. Silver, Southwest Sciences, Inc. (United States)


Published in SPIE Proceedings Vol. 4817:
Diode Lasers and Applications in Atmospheric Sensing
Alan Fried, Editor(s)

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