摘要
介绍了行波管中永磁材料的选择 ,Sm2 Co1 7型永磁材料的稳定性 ,以及测试中极靴、极靴厚度和外径对磁场的影响等。与其它永磁材料相比 ,Sm2 Co1 7型永磁材料稳定性好 ,是一种理想的行波管聚焦磁性材料 ;实验表明 :磁环两端加上极靴后 ,轴向磁场将得到提高 ,而且极靴外径对磁场的影响比厚度大。
The choose of rare earth permanent magnets,the stability of samarium-cobalt permanent magnets, and the influences of the depth and the diameter of pole pieces in TWTs are described in the paper. Sm 2Co 17 is a better magnetic material than others in TWTs . It is shown that the magnetic field intensity will increse after the polar pieces are added,and the influence of the diameter is more obvious than that of the depth.
出处
《真空电子技术》
2003年第3期74-77,共4页
Vacuum Electronics
关键词
稀土永磁材料
钐钴永磁材料
行波管
极靴厚度
稳定性
Rare earth permanent magnets
Samarium-cobalt permanent magnets
Travelling wave tube
