电磁轨道炮过载测试系统设计

Design of overload test system for electromagnetic rail gun

针对一般的用于瞬态参数测试的电子仪器设备在强电磁干扰的影响下无法正常工作的问题,设计了一种能够有效屏蔽强电磁干扰的膛内过载测试装置。该测试装置的壳体结构采用多层电磁屏蔽性能良好的金属材料制做而成,结构内部采用聚氨酯灌封工艺进行填充。内部电路系统结合低功耗设计和数据采集存储技术,完成整个飞行过程中过载参数的采集与记录。在电磁轨道炮实弹测试试验中,测试装置可靠地记录了弹丸的过载数据。试验结果表明,该测试装置的结构外壳对强电磁场起到了有效的电磁屏蔽,内部电路系统得以成功获取弹丸的瞬态过载参数。

In view of the problem that the general electronic instrument and equipment used for transient parameters testing can not work normally under the influence of strong electromagnetic interference,an overload testing device which can effectively shield the strong electromagnetic interference is designed.The shell structure of the testing device is made of multilayer metal materials with good electromagnetic shielding performance,and the internal structure is filled with polyurethane filling technology.The internal circuit system combines low-power design and data acquisition and storage technology to complete the acquisition and recording of overload parameters during the whole flight process.In the actual firing test of electromagnetic railgun,the test device reliably recorded the overload data of the projectile.The result of the experiment shows that the shell structure of the test device has effective electromagnetic shielding for strong electromagnetic fields,and the internal circuit system has successfully acquired the transient overload parameters of the projectile.