枪弹激波实时监测系统的设计与应用

Design and Application of Bullet’s Shock Wave Real-time Monitoring System

摘要:

分析了高速飞行的枪弹产生的激波特性，研究了测量枪弹激波的传感器性能要求，设计了激波传感器驱动及后级信号调理电路，建立了枪弹激波实时监测系统，经实弹射击试验实现了枪弹激波的实时监测。在此基础上进一步开展了基于枪弹激波测量的弹丸定位应用研究，设计了四传感器的平面方阵结构阵列，以及基于CPLD技术的多通道时差测试电路，建立了弹丸定位数学模型，利用LabWindows/CVI软件编程工具设计了上位机应用软件，测得了高速飞行弹丸的空间位置坐标，经和模拟靶标比对，水平方向最大测试误差为1.2mm，组平均误差为0.27mm；高低方向最大误差为1.9mm，组平均误差为0.39mm；满足武器设计工程使用要求。

Abstract:

This paper analyzes the shock wave’s characteristics of the high-speed flying bullets，researches the transducer’s specification for testing the shock wave，and designs the signal conditioning circuit，and the bullet’s shock wave real-time monitoring system is realized.On this basis，makes further application study on bullet’s passive localization based on shock wave’s measuring，designs the four-sensor array of plain square structure, and the pulse-time interval measurement circuit based on CPLD chip,builds and calculates the mathematical model of bullet’s localization,designs the application software of the upper computer by LabWindows/CVI.and get the bullet’s position coordinates.Comparing with the simulated target,the maximum measurement error in horizontal direction is 1.2mm,the group mean error is 0.27mm;the maximum measurement error in vertical direction is 1.9mm,the group mean error is 0.39mm.The measurement accuracy meets the weapon’s design requirements.