水雾的红外遮蔽性能测试及分析  

Research and analysis of the infrared attenuation performance of water fog

作　　者：代梦艳[1] 胡碧茹[1] 杨玉杰[1] 吴文健[1] 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《红外与激光工程》2008年第S2期547-551,共5页Infrared and Laser Engineering

基　　金：国防预研基金项目(411010208)

摘　　要：测试和比较了天然雾、造雾剂成雾、超声波水雾等不同雾型的红外遮蔽效果,并结合雾的微物理性能特点分析了红外衰减性能差异产生的原因。结果表明天然雾的红外遮蔽性能有限;造雾剂可见光遮蔽效果优良,成雾的雾滴粒度小、数密度大,但含水量较小,红外遮蔽效果不明显;超声波水雾的雾滴粒径大、含水量大,雾幛的红外遮蔽效果突出。The infrared attenuation performances of nature fog, artificial fog by fog aerosol and ultrasonic fog are tested. The reason for the different IR shield effect of different fog is analyzed by taking account of the microscopical character. The results show that the IR attenuation of nature fog is limited. Not very effectively the artificial fog by aerosol affects in IR extinction. Its characteristics comprise small granularity, low liquid water content and big droplet concentration. The granularity and liqui...

关 键 词：水雾 红外遮蔽 雾滴 含水量 

分 类 号：TN972[电子电信—信号与信息处理]