Boersch效应实验系统聚焦透镜的优化设计

聚焦透镜是Ｂｏｅｒｓｃｈ效应实验系统的一个关键部件，我们对聚焦透镜的结构进行了优化设计，根据优化的约束，选用了带有外点罚函数的Ｐｏｗｅｌｌ法，研究了其算法的构造，并编制了相应的优化软件，用此软件进行优化计算后，得到了满足Ｂｏｅｒｓｃｈ效应实验要求的聚焦透镜。此结构用于实验中，观测到了明显的Ｂｏｅｒｓｃｈ效应。证明此优化方法Ｂｏｅｒｓｃｈ效应实验系统中的聚焦透镜设计非常有效。

Optimization of Focusing Lens in the Experimental System of Boersch Effect

The focusing lens is an important element in the experimental system of Boersch effect. Optimization was utilized in the design of s structure. The combination of Powell method and penalty function was chosen according to the constraint conditions. The algorithm was studied and a program for optimization was written based on these. A satisfying structure was obtained by numerical computation using the program. The structrue was used in the exper- iment and notable Boersch effect was observed. It is proved that this optimization method is ef- fective in the design of focusing lens in the experimental system of Boersch effect.