Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10408770 | Optics and Lasers in Engineering | 2005 | 10 Pages |
Abstract
We report a method measuring 3-D displacement of cambered mirror for cryogenic optical system using white light speckle photography with double light sources and double cameras. Data acquiring and processing based on a digital image processing system is described. The 3-D displacement and displacement vector distributions in two low-temperature ranges are measured.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
Zhengyuan Cao, Jianxin Gao, Shaode Gu, Guohong Zhang,