Research on electromagnetic emission technology of internal drive direct feed armature

In order to solve the problems of low energy conversion efficiency, high peak current in the main circuit, and weak adaptability to the shape of the projectile in traditional external drive responsive emitters, an electromagnetic emitter with an internal drive direct fed armature structure is proposed. By establishing the electromagnetic mechanical coupling models of the direct fed armature emitter and the induction armature emitter, the circuit and motion characteristics of the two emitters were solved using numerical analysis methods, and the correctness of the model was verified using the finite element simulation results of field circuit coupling. The solution results show that the energy conversion efficiency of the internal drive direct fed armature electromagnetic transmitter is 51.12% higher than that of the internal drive induction armature electromagnetic transmitter, and its peak circuit current is about 7 kA lower than that of the induction transmitter. It has been proven that the internally driven direct fed armature electromagnetic transmitter has higher energy conversion efficiency and lower loop current peak.