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本文推导了根据全息照相条纹图象快速计算三维位移的方程组,其主要优点是,应用微处理机来解算任何大型物体(如机床)的三维位移场,并且只需测定少量几何参数.其计算结果与实验相符.在此基础上,进一步发展了一种自动识别大型物体全息照相条纹图象的基本系统,一旦把全息照相放入该系统,物体全部测点的三维位移数据便会从系统的末端输出,并和人工处理的结果一致.由此,证实了在工业中采用全息照相快速三维位移定量分析法是可能实现的.
In this paper, we derive a system of equations that rapidly calculate 3D displacements based on holographic fringe patterns. The main advantage of this method is that a microprocessor can be used to solve the 3D displacement field of any large object (such as a machine tool), and only a few geometrical parameters need to be measured The calculation results agree well with the experimental results.On the basis of this, a basic system of automatically recognizing the holographic streak image of a large object is further developed. Once the holographic image is put into the system, the three-dimensional displacement data of all measuring points of the object will be removed from the system Of the end of the output and consistent with the results of manual processing.Thus, confirmed the industrial use of holographic rapid three-dimensional displacement quantitative analysis is possible.