Early fire sensing using near-IR diode laser spectroscopy

David S. Bomse; D. Christian Hovde; Shin-Juh Chen; Joel A. Silver

doi:10.1117/12.452097

23 September 2002 Early fire sensing using near-IR diode laser spectroscopy

David S. Bomse, D. Christian Hovde, Shin-Juh Chen, Joel A. Silver

Proceedings Volume 4817, Diode Lasers and Applications in Atmospheric Sensing; (2002) https://doi.org/10.1117/12.452097
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

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.

Citation Download Citation

David S. Bomse, D. Christian Hovde, Shin-Juh Chen, and Joel A. Silver "Early fire sensing using near-IR diode laser spectroscopy", Proc. SPIE 4817, Diode Lasers and Applications in Atmospheric Sensing, (23 September 2002); https://doi.org/10.1117/12.452097

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