In-cell measurements of smoke backscattering coefficients using a CO2 laser system for application to lidar-dial forest fire detection

Carlo Bellecci; Pasquale Gaudio; Michela Gelfusa; Teresa Lo Feudo; Andrea Murari; Maria Richetta; Leonardo De Leo

doi:10.1117/1.3526331

1 December 2010 In-cell measurements of smoke backscattering coefficients using a CO₂ laser system for application to lidar-dial forest fire detection

Carlo Bellecci, Pasquale Gaudio, Michela Gelfusa, Teresa Lo Feudo, Andrea Murari, Maria Richetta, Leonardo De Leo

Author Affiliations +

Optical Engineering, Vol. 49, Issue 12, 124302 (December 2010). https://doi.org/10.1117/1.3526331

Abstract

In the lidar-dial method, the amount of the water vapor present in the smoke of the vegetable fuel is detected to reduce the number of false alarms. We report the measurements of the smoke backscattering coefficients for the CO₂ laser lines 10R20 and 10R18 as determined in an absorption cell for two different vegetable fuels (eucalyptus and conifer). These experimental backscattering coefficients enable us to determine the error to be associated to the water vapor measurements when the traditional first-order approximation is assumed. We find that this first-order approximation is valid for combustion rates as low as 100 g/s.

©(2010) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Carlo Bellecci, Pasquale Gaudio, Michela Gelfusa, Teresa Lo Feudo, Andrea Murari, Maria Richetta, and Leonardo De Leo "In-cell measurements of smoke backscattering coefficients using a CO₂ laser system for application to lidar-dial forest fire detection," Optical Engineering 49(12), 124302 (1 December 2010). https://doi.org/10.1117/1.3526331

Published: 1 December 2010

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