双曝光全息干涉图的自动计算

用Ａｒ＾＋激光器作光源，用硅酸铋晶体作全息记录介质，把三个干涉图法应用到双曝光全息干涉术，从而实现了全息干涉图的自动计算，获得被测物体表面变形的大小，方向和形状的全部信息，为验证该方法，测试了一薄板受应力后的变形。

Automatic computing for double- exposure hologram

Automatic computing for hologram is realized by using Ar + laser as a light source and BSO crystal as a holographic recording material,and using tri-inter- ferogram technique on double- exposure holographic interferometry.As a result all the information of the dimension,form and direction for surface deformation of the measured object can be acquired.In order to verify this technique,the deformation measurement of a thin plate under stress is carried out.