设计并制作了一种小型有刷电磁弹射器，重点分析了其工作原理、结构设计以及性能参数。通过对电磁弹射器的电磁驱动特性进行研究，探讨了影响发射效率的关键因素，并对其在高精度控制和能量转化效率方面的优势进行了实验验证。结果表明，该电磁弹射器具有响应速度快、可靠性高、维护简便等特点，可为未来电磁弹射器的小型化设计提供参考。

A compact brushed electromagnetic catapult was designed and fabricated， with focused analysis on its operational principle， structural design， and performance parameters. By investigating the electromagnetic driving characteristics of the catapult system， the key factors influencing launch efficiency are explored. Additionally， the advantages of the system in high-precision control and energy conversion efficiency are experimentally validated. The results demonstrate that the proposed electromagnetic catapult exhibits rapid response speed， high reliability， and ease of maintenance. This work provides a reference for the miniaturized design of future electromagnetic catapult systems.