基于磁通门技术的空炸引信计转数系统研究

RESEARCH ON THE PROXIMITY FUZE TURNS-COUNTING SYSTEM BASED ON FLUXGATE TECHNOLOGY

在分析地磁场特点基础上提出利用磁通门传感器进行计转数的方法,推导出磁通门传感器输出信号为弹体转角的正、余弦函数关系式,设计了相应的信号调理电路及数据存储测试系统。对调理后的电压信号波形计数即可准确获得弹丸的转数,为旋转弹丸引信炸点精确控制提供了依据。

The distribution and characteristics of earth magnetic field are analyzed. A method of the turns-counting applied to proximity fuze based on fluxgate sensor is proposed. The output of fluxgate sensors being sine function or cosine function of the projectile's rotation degrees is deduced. The signal process circuit and a micro-stored data acquisition system are designed. The projectile's turns are gained exactly by calculating the number of the output signal curve. It provides the basis of precisely controling the blasting point for the pinning round's proximity fuze.