基于时控方法的感应线圈发射器研究

Research on the Model of Induction Coil Launcher Based on Time Control

基于电磁感应原理和仿真分析结果,设计和制作了感应线圈型电磁发射器模型。该模型利用控制电路放电时间的方法,克服了传统线圈发射器要在线圈内部加装传感器而使结构复杂的弊病。借助SIMPLORER和Maxwell仿真软件对发射器进行分析。根据仿真结果所设计的模型,在74V电压下,可把质量40g的铁磁材料弹丸加速到4．67m／s。并对模型实验结果和系统性能进行分析讨论。结果表明该发射器线圈内部磁场分布均匀,可较好地消除弹丸在线圈中抖动的现象,大大提高了系统的稳定性。

Based on electromagnetic induction principle and result of magnetic field simulation, a model of induction coil launcher with control turn-on time is analyzed and designed. It is improved the traditional coil launcher must be fixed the position sensor, which makes the construction of coil more complex. The model is simulated by SIMPLORER and Maxwell. A 40g projectile can be accelerated to 4.67m/s at DC voltage of 74V in this model. Performance of the system and experiment data is analyzed. The model can make magnetic filed uniformity. Therefore, the skate of the projectile can be eliminated, which can make the system more stability.