本文提出了一种新的散斑照相法——孔径径向扫描散斑照相法,以及初步的实验结果.该方法的优点是能在一张散斑图上记录物体动态变形的全过程,在全场滤波分析时,能以等值条纹的形式给出任一瞬时物体在x轴、y轴和45°方向上的变形信息.

In this paper, a new method of speckle photography-radially scanning apertire method is proposed, and theoretical analysis and experimental results are presented. This method has the advantage of recording the whole dynamic process of an object on one speckle photogram. The information of deformation in the direction of x and y axis and of 45° at any moment can be obtained in the form of isothetio fringes by whole field filtering.