螺旋型爆磁压缩脉冲功率源模拟计算

以间接馈电的两级螺旋型爆磁压缩发生器为初始功率源，基于等效电路模型，编制了一个螺旋型爆磁压缩脉冲功率源计算程序BCYSSYS。利用该程序对04型爆磁压缩发生器驱动电感负载进行了计算，并将计算结果与实验结果进行比较，两者基本吻合；对该发生器驱动电容负载进行了计算。同时利用铜金属丝电爆炸过程中电阻率与比作用量的关系数据表，对爆磁压缩发生器驱动含电爆炸丝断路开关的电感储能脉冲功率调节系统进行了数值计算。

Using Fourier optics to study features of combined beams in far field

By using Fourier optics analyzing method, the expression to the far field of combined beams is deduced and the expressions for the coherently combined beams emitted from sources positioned on the circle have been given.For the cases where the sources are uniformly distributed,the dark lines in the far field are studied for beam numbers of 2,3 and 4,respectively.It is found that when the sources number is 2,there are only dark lines(instead of rings) on the far field pattern and when the sources numbers are 3 and 4,the dark rings are far from being the circles.Since Fourier optics method is easy to implement and can be applied to non-Gaussian beams(such as those from the fiber lasers,semiconductor lasers,etc.),so it possessed unique advantages and is of practical significance.