可分离双参考光两次曝光全息法测机械变形方向  

MEASURING DIRECTION OF MECHANICAL DISTORTION BY DETACHABLE DOUBLE-REFERENCE-BEAM DOUBLE-HOLOGRAPHY

作　　者：李冠成[1] 于艳春[1] 冯颖[2] 刘小廷[3] 蔡静[4] 

机构地区：[1]淮海工学院数理系,连云港222005 [2]东北电力学院数理系,吉林132000 [3]南京航空航天大学物理系,南京210016 [4]中国电子科技集团公司第55研究所,南京210016

出　　处：《机械工程学报》2005年第10期235-238,共4页Journal of Mechanical Engineering

摘　　要：提出用可分离双参考光两次曝光全息测量物体变形方向的方法,设计的光络系统用两个平面反射镜将一束扩展激光束分成两束参考光和一束物光,藉此记录物体变形下的可分离双参考光两次曝光全息干涉图。这种干涉图含有物体变形的数值和方向的两种信息,从理论上对此作了分析,叙述了测量物体变形方向的方法,给出了试验结果。The method of measuring direction of mechanical deformation by detachable-doublereference-beam doubleexposure holography is proposed. In the optical system designed, a spread beam is divided in the two reference beams and one object beam with the help of the two planar mirrors. Thus the double-exposure interferogram of the measured object under constant deformation can be recorded. This kind of interferogram carries double informations on quantity and direction of deformation of measured object. Problem on information of deformation direction is analyzed in theory. The method of using detachable-double-reference-beam double-exposure holography to measure deformation direction is described. Experimental results are given.

关 键 词：可分离双参考光两次曝光全息法 机械变形方向 测量 

分 类 号：TH822[机械工程—仪器科学与技术] O348.11[机械工程—精密仪器及机械]