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本文提出了动态散斑照相的一种新方法─-旋转光楔散斑照相术.文中给出了理论分析及实验结果。该方法不仅能在一张记录介质上记录物体动变形的各状态的多通道散斑图,而且用全场滤波分析时,能方便地同时给出所有通道上的物体变形信息,得到清晰的、高衬比的干涉条纹图。这种方法是利用旋转光楔照相机来实现多通道动态散斑记录,具有设备简单、用途广泛等优点。文中给出了实测结果,理论分析与实验结果是吻合的。
This paper presents a new method of dynamic speckle photography ─ ─ Rotational optical wedge speckle photography. The paper gives the theoretical analysis and experimental results. The method can not only record multi-channel speckle patterns of moving states of a moving object on a recording medium, but also can easily give object deformation information of all channels simultaneously with full-field filtering analysis to obtain clear, High-contrast interference fringe pattern. This method is the use of rotating wedge camera to achieve multi-channel dynamic speckle recording, with the advantages of simple equipment, wide range of uses. The paper gives the measured results, the theoretical analysis and experimental results are consistent.