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基于Mie散射理论,建立了水雾粒子的消光模型,计算了水雾粒子的多光谱消光特性,分析了水雾的消光特性与水雾粒子粒径之间的关系。结果表明:不同波长条件下,最佳水雾消光性能所对应的水雾粒子粒径也不同;半径在0.22~0.53μm的水雾粒子对可见光的消光性能最好;半径在0.81~8.15μm的水雾粒子对中、远红外辐射的消光性能最好;对于1.06μm和10.6μm两个军用激光常见波长,水雾粒子半径应分别为0.89μm和8.15μm,才能达最佳消光效果。
Based on Mie scattering theory, the extinction model of water mist particles was established and the multi-spectral extinction characteristics of water mist particles were calculated. The relationship between the extinction characteristics of water mist and the particle size of water mist particles was analyzed. The results showed that the optimum water mist extinction properties correspond to different water mist particle diameters under different wavelength conditions. The water mist particles with a radius of 0.22 to 0.53 μm have the best extinction properties for visible light. The average water fog with a radius of 0.81 ~ 8.15 μm For the mid-wavelength and mid-infrared water fog particles, the extinction performance of far-infrared radiation is the best. For the common wavelengths of 1.06μm and 10.6μm, the particle radius should be 0.89μm and 8.15μm, respectively, to achieve the best extinction effect.