基于数据采集方法的弹丸速度测量

用基于微机PCI总线的A/D采集板实时采集光幕靶的输出信号,用数字信号处理的方法实现弹丸速度的测量,滤除干扰信号,增加测量可靠性.并可同时处理数字脉冲信号和弹形模拟信号,数据处理功能强.在不改变硬件的条件下,更换配接的相应传感器,就可以用于枪膛压力曲线的测试.描述了计算机与双通道采集板组成的测试系统,分析了相应参数的选取对测速精度的影响.实弹射击实验验证了可以满足靶场测量的要求.

A method to measure bullet velocity based on data collecting

In this paper presentedis a new method to measure the velocity of flying bullet,in which data signals collecting as well assystem based on PCI bus A/D board and DSP technique are used. The method is able to process digital pulse bullet analog signals. It can be used to measure the pressure curve of bore of a gun with the replace ment of relative sensors to optical sunlight screens within hardware configurations. The velocity measurement system based on computer and the double channels digital data collecting board is described. The influence of determined parameters on the measurement accuracy is analyzed. Firing practice experiments prove the method satisfactory the requirement of range measurement.