Infrared radiation characteristics analysis of high velocity projectile in detection screen
Infrared radiation characteristics analysis of high velocity projectile in detection screen
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发表时间：
2009
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通讯作者：
Lei Zhi-yong
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作者：
Lei Zhi-yong
针对光电探测目标在低照度或夜间无法工作的情况，提出采用红外探测技术设计其探测光学系统，以提高其探测性能。根据热辐射原理以及弹丸高速飞行时的热交换特性，运用节点网络理论建立弹丸表面热辐射方程，分析高速弹丸在探测屏中的红外辐射特性。采用微分法计算弹丸在屏中的红外辐射。通过探测光学系统建立输出信号与弹丸辐射通量之间的关系。结合弹丸长度和作用距离，分析不同厚度屏中输出信号的变化以及不同速度和直径弹丸的红外辐射情况。
For the optic -electric detecting target cannot work with low illumination or at night, the infrared detection technology was proposed to design its detection optical system and improve its detection performance. According to principles of thermal radiation and characteristics of heat exchange when projectile was flying with high velocity, the nodal network theory was used to set up the equation of thermal radiation of projectile surface, and analyze the infrared radiation characteristics of high velocity projectile in the detection screen. The differential method was adopted to calculate the infrared radiation of projectile in the screen. The relationship between the output signal and the radiation flux of projectile was set up by the detection optical system. The length and function distance of projectile were combined to analyze the variety of output signal in different thick screens and the infrared radiation of projectile with different velocities and diameters.