Recently, sampling moire method was developed to analyze the phase of a one-dimensional or two-dimensional grating on an object with high accuracy. In the method, several phase-shifted moire patterns are generated from one image of the grating. In order to analyze a shape by a stereoscopic method, it is necessary to find the corresponding points between the two images of the object recorded from different two cameras. It is possible to analyze the phase of the grating using the sampling moire method and find the corresponding points as points with the same phase. It is also possible to analyze the displacement and strain from the corresponding point before and after deformation. This method is, therefore, suitable for shape and strain distribution measurement of a moving object. In this paper, a dynamic shape and strain measurement method using the sampling moire method is proposed and a system for the measurement is developed. The principle of the method, the measurement system, and the experimental results applied to a rotating tire running at the speed of 80 km/h are shown.
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机译：最近，开发了采样莫尔条纹法以高精度地分析物体上的一维或二维光栅的相位。在该方法中，从光栅的一个图像产生几个相移的莫尔图案。为了通过立体方法分析形状，必须找到从不同的两个照相机记录的物体的两个图像之间的对应点。可以使用采样莫尔条纹法分析光栅的相位，并找到相应的点作为具有相同相位的点。还可以分析变形前后相应点的位移和应变。因此，该方法适用于移动物体的形状和应变分布测量。本文提出了一种使用采样莫尔条纹的动态形状和应变测量方法，并开发了一种测量系统。显示了该方法的原理，测量系统以及应用于以80 km / h的速度运行的旋转轮胎的实验结果。
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