Indexed by:期刊论文
Date of Publication:2016-01-01
Journal:光电子·激光
Included Journals:Scopus、PKU、CSCD
Volume:27
Issue:2
Page Number:191-197
ISSN No.:1005-0086
Key Words:数字全息干涉术; 离面位移; 窗口傅里叶脊; 干涉场; 菲涅尔衍射积分; 幅度区分准则
Abstract:提出了一种基于窗口傅里叶脊的离面与面内位移分离方法,应用于数字全息的多分量干涉相位场分离。首先,物光束对称照射待测物体,参考光束直接照射CCD靶
面,由CCD相机记录物体变形前后的两幅离轴数字全息图;然后,采用菲涅尔衍射积分法再现物体变形前后的复物光场,再由两幅复物光场共轭相乘构建干涉场,
利用幅度区分准则和窗口傅里叶变换处理复干涉场,通过窗口傅里叶脊值的搜索,提取不同灵敏度矢量物光对应的干涉相位分量;再对干涉相位场进行简单数值运算
,将面内与离面位移场分离出来。最后,对周边固定、点加载、绕轴向旋转的Al制圆盘三维位移场进行实际测量。实验结果验证了本文方法的有效性。
Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Gender:Male
Alma Mater:Dalian University of Technology (DUT)
Degree:Doctoral Degree
School/Department:State Key Laboratory of Industrial Equipment for Structral Analysis, Department of Engineering Mechanics
Discipline:Solid Mechanics. Applied and Experimental Mechanics. Engineering Mechanics. Mechanical Manufacture and Automation. Vehicle Engineering. Aerospace Mechanics and Engineering. mechanics of manufacturing process
Business Address:Room 321, Department of Engineering Mechanics
Contact Information:Tel.: 86 0411-84708406 Email: leizk@dlut.edu.cn
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