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

被引：13

作者：

Bellecci, Carlo ^{[1
]}

Gaudio, Pasquale ^{[1
]}

Gelfusa, Michela ^{[1
]}

Lo Feudo, Teresa ^{[2
]}

Murari, Andrea ^{[3
]}

Richetta, Maria ^{[1
]}

De Leo, Leonerdo ^{[2
]}

机构：

[1] Univ Roma Tor Vergata, Fac Engn, Dept Mech Engn, I-00133 Rome, Italy

[2] Unical, Consorzio Ric & Applicaz Tecnol Innovat Scrl, I-87036 Arcavacata Di Rende, Italy

[3] EURATOM ENEA Fus, Consorzio RFX Assoc, I-35127 Padua, Italy

来源：

OPTICAL ENGINEERING | 2010年 / 49卷 / 12期

关键词：

dial; forest fire; water vapor; backscattering coefficient; AUTOMATIC DETECTION SYSTEMS; REDUCTION;

D O I：

10.1117/1.3526331

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (c) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3526331]

引用

页数：5

共 37 条

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