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前言电压调谐磁控管磁场设计类似于其它器件的磁场设计。其设计计算任务主要有两个方面,其一是已知磁路结构、材料性能、永久磁铁尺寸,求给定间隙的磁场;其二是已知磁路间隙的形状、大小及中心磁场强度,确定磁路结构及材料。永久磁铁的磁路设计困难较多,要做到百分之百的准确不大可能,但在设计过程中要注意理论联系实际,尽量做到磁路设计合理,通常我们用系数η来衡量。η由下式计算:
Introduction The voltage-tuned magnetron field design is similar to the magnetic field design of other devices. The design and calculation tasks are mainly two aspects, one is known magnetic circuit structure, material properties, the size of the permanent magnet, for a given gap magnetic field; the other is the known magnetic circuit gap shape, size and magnetic field strength, Determine the magnetic circuit structure and materials. Permanent magnet magnetic circuit design more difficult to achieve 100% accurate unlikely, but in the design process should pay attention to the theory with practice, as far as possible magnetic circuit design is reasonable, usually we use the coefficient η to measure. η is calculated by the following formula: