The method also has the desirable feature of time saving and operator bias removing . the technique can be applied for the measurement of the outside diameter , the core diameter , or the core concentricity of hollow - core optical fibers , so as to eval - uate fibers 这个技术可以测量出空芯光纤的纤芯直径、包层直径、纤芯的不圆度、包层的不圆度以及纤芯/包层同心度误差，从而用来评估空芯光纤的质量。
In chapter 4 : firstly , elaborate the theory of making polymer grin micro - lens by means of suspension - diffusion - copolymerization ; secondly , introduce the measurement of the common optics parameter of the medium lens , for example , light passing index , non - sphericity and so on 第四章先介绍应用悬浮扩散共聚法制备高分子grin透镜的机理，随后介绍了对所制备的微球的折射率分布、透过率、不圆度等重要光学参数的测量。
Introduce the measurement of the common optics parameter of the medium lens , for example , light passing index , no - sphericity and so on , emphasize on the way and result of using shearing interferometric technique to measure the refractive index distribution curve of the micro - lens 第四章介绍对所制备的此种介质球透镜的透过率、不圆度等重要光学参数的测量。重点阐述利用剪切干涉技术测量微球透镜的折射率分布曲线的方法和测量结果。
Elaborate the theoretics of making polymer grin micro - lens by means of suspension - diffusion - copolymerization and the measurement of the common optics parameter of the medium lens , such as light passing index , no - sphericity and so on , then analyze those results and make advises on how to improve 第三章介绍了悬浮扩散共聚法制备grin微球透镜的工艺过程，及对所制备的聚合物球透镜的折射率分布、透过率、不圆度等光学参数进行的测量。对实验结果进行了分析，并对制备过程中工艺条件的改善提出了改进的建议。
3d numerical simulation of finete element method ( fem ) program is used to calculate and analyse the distribution of stress and strain during hydrobulging , the ovality of single - curvature polyhedron after being hydrobulged while the dimension of polar plate of single - curvature polyhedron without the flaw of imaginary crack changes 摘要利用三维数值模拟方法，对假想无裂纹的单曲率多面壳体模型上极板尺寸发生变化时胀形过程中应力应变的分布、胀形结束后多而壳体的不圆度等进行了计算和比较。
