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为探讨纳米碳纤维作为烟幕粒子的红外消光特性,基于电磁场理论建立了细直的纳米碳纤维感应电流积分方程,并利用矩量法进行了求解,导出了纳米碳纤维散射场及吸收、散射和消光截面的计算式.通过与变分法的计算结果相比较,表明了该方法的有效性.利用该方法数值分析了纳米碳纤维红外消光截面与入射场波长、入射角、纤维长度和半径的关系,计算结果为纳米碳纤维用于红外烟幕干扰提供了理论依据.
In order to investigate the infrared extinction characteristics of carbon nanofibers as smoke particles, a thin straight integral equation of carbon fiber current induction was established based on the electromagnetic field theory. The moment of inertia was used to solve the equation. The scattering field, absorption, scattering and extinction cross section The results show that the method is effective compared with the results of the variational method.The relationship between the infrared extinction cross section of the carbon nanofibers and the incident wavelength, incident angle, fiber length and radius is numerically analyzed by this method. The calculated results It provides a theoretical basis for the interference of nanometer carbon fiber used in infrared smoke screen.