基于地磁计转数的引信化学电池相对激活时间测试方法研究

针对小口径引信化学电池激活时间的测试需求，提出了一种利用弹载存储测试技术同时记录化学电池电压曲线和弹道地磁信号的测试方法。给出了引信电池相对激活时间的定义和测试原理；仿真分析了突变磁场的产生方法及局部地磁信号的畸变特性；给出了动态回收试验方法与试验数据。试验结果表明，该测试方法可以获得电池电压上升曲线、弹丸出炮口时刻及电池相对激活时间，对优化电池性能及提升引信作用精度有参考意义。

Testing Method for Relative Activation Time of Fuze Chemical Battery Based on Geomagnetism Turns-counting

A method to use the memory testing technology for the simultaneous record of the voltage curve of chemical battery and the geomagnetic signal in the trajectory is presented for the test requirement of activation time of small-caliber fuze chemical battery.The relative activation time of chemical battery and the testing principle are given.The generation method of mutation magnetic field and the distortion performance of local magnetic field are analyzed,and a dynamic recovery test method and the experimental data are given.The experimental results show that the proposed method can be use to get the voltage curve of chemical battery,the time when a projectile passes a muzzle,and the relative activation time of chemical battery,which has an important significance to optimize the cell performance and improve the precision of fuze.