【作者】 张阜文；

【导师】 吴坚强； 李家胤；

【作者基本信息】 电子科技大学 ， 物理电子学， 2001， 硕士

【摘要】 永磁磁路系统研究是当今微波管设计的重要组成部分，本文主要从理论、计算模拟和实验三方面对永磁磁路设计进行了研究及分析。 本文首先阐述了磁路计算及设计的基本要求，利用分析轴向永磁体磁路理论的方法，推导出了求解径向磁化磁路的理论方程，应用有限差分法，编制了计算程序，对磁路的磁场进行了模拟；然后利用比较成熟的计算磁路磁场软件FEMM作深入研究，考虑了影响磁路磁场的多种因素，得出了大量数据和曲线，给出了几组比较合理的磁路结构，可供实验的参考；最后，结合本实验室条件，对现有永磁体磁路进行了冷测，将测试结果和计算模拟结果作了比较，并进行了讨论和分析。更多还原

【Abstract】 The permanent magnetic circuit is important for modem microwave tube design .In this paper the permanent magnetic circuit design is researched and analysed by theory, calculational simulation and experiment.First, we make the basic need of magnetic circuit clearly, present the theory formulation for permanent magnetic circuit of radial polarization using the method of analyzing the theory of magnetic circuit of axis polarization, and program the calculational programme to simulate the magnetic field of magnetic circuit applying finite difference method. Then we continue to study using the adult soft of FEMM of calculation magnetic circuit magnetic field, consider many factors affecting it, get a great lot of data and curves, give some better magnetic circuit structures for reference at our laboratory. In the end, with the condition of our lab, we measure the permanent magnetic circuit completed, then the experimental and calculational simulation results have been discussed and analyzed.更多还原