Measurement method for the key terminal ballistic parameters of the supersonic projectile using the sparse distribution detector array

Ziyu Yang, Chenghua Deng, Ding Chen
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Abstract

The article proposes a measurement method using the sparse distribution detector array, and it can accurately measure the key terminal ballistic parameters (including hitting coordinates, flight velocity, firing angle and firing rate, etc.) of the supersonic projectile. Firstly, we describe the shock wave of the supersonic projectile and its propagation characteristics. What is more, the detection principle of the system is presented. Secondly, its measurement model is established through combining with the relevant structural parameters and the shock wave propagation velocity in the detection area. Next, the system is developed, and it mainly consists of several pairs of laser emitters and their receivers, two support frames, and a signal conditioning circuit. Finally, the systematic errors of the above parameters are analyzed through numerical simulation, respectively. The results show that the measurement method can meet the requirements for testing the terminal ballistic parameters of the supersonic projectile. Compared with the previous methods, it has the advantages such as better uniformity detection sensitivity, high accuracy, lower cost, easy installation and adjustment.
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利用稀疏分布探测器阵列测量超音速弹丸关键末端弹道参数的方法
文章提出了一种利用稀疏分布探测器阵列的测量方法,可以精确测量超音速弹丸的关键末端弹道参数(包括命中坐标、飞行速度、发射角和发射率等)。首先,我们描述了超音速弹丸的冲击波及其传播特性。此外,还介绍了系统的探测原理。其次,结合相关结构参数和冲击波在探测区域的传播速度,建立了测量模型。然后,开发了该系统,它主要由几对激光发射器及其接收器、两个支撑框架和一个信号调理电路组成。最后,分别通过数值模拟分析了上述参数的系统误差。结果表明,该测量方法可以满足测试超音速弹丸末端弹道参数的要求。与以往的方法相比,它具有更好的均匀性检测灵敏度、高精度、低成本、易于安装和调整等优点。
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