| || Measurement of Infrared Transmissivity of Smoke Using a Thermal Imager
Author : Xu Bo;Shi Jiaming;Wang Jiachun;Yuan Zhongcai;Wang Jiayin ;Xu Jiwei
Source : Defence Science Journal ; Vol:56(5) ; 2006 ; pp 785-790
Subject : 66 Chemical Technology;662.3 Propellants
Keywords : Smoke chamber test;Thermal imager;Extinction characteristics;Smoke transmission;Infrared transmissivity of smoke;Smoke material
Abstract : The smoke is an effective camouflage method and is widely used in the modern battlefields. The smoke chamber test is used quantitatively to extinct the energies of the smoke material. In the smoke chamber test, a key problem is to accurately measure the transmissivity of the smoke. In this paper, the relationship between the temperatures measured and the radiation received by the thermal imager has been disussed. The equation to accurately calculate the infrared transmissivity of the smoke from the measured temperature is deduced. This equation is also compared with the simplified one.