旋转孔径锥镜剪切散斑照相法  

Rotating aperture cone glass shearing speckle photography

作　　者：王开福[1] 沈永昭[2] 

机构地区：[1]扬州工学院力学室,扬州225001 [2]苏州大学物理系,苏州215006

出　　处：《光学学报》1993年第3期287-288,共2页Acta Optica Sinica

摘　　要：本文提出利用旋转孔径和锥镜进行剪切散斑照相,研测动态问题.该法能在一张散斑图上记录下物体动态变形的全过程,在全场滤波时可得到任意时刻的瞬态位移偏导数场.In this paper, rotating aperture cone glass shearing speckle photography used for dynamic problems is proposed. The whole dynamic process can be recorded on a single specklegram, and the derivatives of displacements of every moment can be obtained by whole-field filtering.

关 键 词：旋转孔径 锥镜 位移偏导数 散斑法 

分 类 号：O348.12[理学—固体力学]