强磁场对电磁发射弹药引信的危害及防护

Hazards and Protection to Electromagnetic-launched Ammunition Fuze Under High Magnetic Field Environment

摘要:

研究了强磁场环境对弹药引信的危害，探讨了引信对强磁环境的防护方法，涉及到引信中活动零部件的设计及防护、引信中电路的强磁环境耐受性及防护 2 个方面。基于防护方法实用性的考虑，提出了采用位置布局与柔性导磁材料屏蔽相结合，对电磁发射弹药引信进行强磁场防护的方法，通过仿真和实验室试验，验证了提出的防护方法可为引信中的活动零部件、电路提供有效防护。

Abstract:

The hazards to ammunition fuze under high magnetic field environment are studied in this paper. Then the protection method of ammunition fuze against high magnetic field environment are discussed，which involves the design and protection of moving parts in the fuze，as well as the tolerance and protection of circuit boards against high magnetic field environment. In consideration of practicality，a protection method that combines position layout with flexible magnetic material shielding is proposed for the protection of electromagnetic-launched ammunition fuze under high magnetic field. At last，the simulation and test results show that the shielding method has an excellent protection performance to the moving parts and circuit boards in ammunition fuze．