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Optical Engineering

In-cell measurements of smoke backscattering coefficients using a CO2 laser system for application to lidar-dial forest fire detection
Author(s): Carlo Bellecci; Pasquale Gaudio; Michela Gelfusa; Teresa Lo Feudo; Andrea Murari; Maria Richetta; Leonardo De Leo
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Paper 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.

Paper Details

Date Published: 1 December 2010
PDF: 5 pages
Opt. Eng. 49(12) 124302 doi: 10.1117/1.3526331
Published in: Optical Engineering Volume 49, Issue 12
Show Author Affiliations
Carlo Bellecci, Univ. degli Studi di Roma Tor Vergata (Italy)
Pasquale Gaudio, Univ. degli Studi di Roma Tor Vergata (Italy)
Michela Gelfusa, Univ. degli Studi di Roma Tor Vergata (Italy)
Teresa Lo Feudo, Consorzio per la Ricerca e le Applicazioni di, Tecnologies Innovate s.c.r.l (Italy)
Andrea Murari, Consorzio RFX-Association EURATOM-ENEA (Italy)
Maria Richetta, Univ. degli Studi di Roma Tor Vergata (Italy)
Leonardo De Leo, Consorzio per la Ricerca e le Applicazioni di, Tecnologies Innovate s.c.r.l (Italy)


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