碳纤维粒子尺度对红外/毫米波复合干扰性能研究

为了研究不同尺度碳纤维粒子对红外/毫米波的复合干扰性能，利用试验样板在静态测试条件下针对不同尺度碳纤维进行红外和毫米波衰减率测试，筛选出对两者分别具有最优衰减效果的碳纤维粒子尺度。在此基础上，选择远红外和8 mm波作为衰减对象，利用烟幕试验箱动态测试并分析了具有最佳尺度特征的碳纤维在不同配比条件下对红外/毫米波的复合干扰性能。实验结果表明:碳纤维粉体对红外具有更优异的衰减效果，短切碳纤维对毫米波的干扰性能更加显著，800目、1.5 mm和4 mm是碳纤维粒子衰减红外/毫米波的最佳尺度，对应配比为22%、4%和74%时各波段的复合干扰性能最优。

Study on infrared/millimeter wave composite interference performance of carbon fiber particle size

In order to study the composite interference performance of carbon fiber with different particle diameters on infrared/millimeter wave, the attenuation rate of infrared and millimeter wave was tested on carbon fiber with different particle diameters under static test conditions using test samples, and the ones with the best attenuation effects for the two were selected. The far-infrared and 8 mm wave were selected as the attenuation objects. The smoke screen test box was used to dynamically test and analyze the carbon fiber with the best particle size characteristics to the infrared/millimeter wave of composite interference performance. The experimental results show that carbon fiber powder has a better attenuation effect on infrared, and the interference performance of chopped carbon fiber on millimeter wave is more significant. 800 mesh, 1.5 mm and 4 mm are the best particle sizes for carbon fiber attenuation of infrared/millimeter wave. The composite interference performance of each band is the best when the ratio is 22%, 4%, and 74%.