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本文从径向圆光栅形成的莫尔条纹的原理出发,简要分析了其纵、横向莫尔条纹信号的位相和条纹移动的速度、加速度特性,其研究结果对于今后更好地选用径向圆光栅形成的莫尔条纹有一定的指导意义。计量光栅作为一种精密的测量工具,在各个领域已经得到了广泛的应用。它把光、杌、电三大技术有机地结合起来,在长度、角度测量及自动控制等方面展现了它的优势。在应用径向圆光栅形成的莫尔条纹进行角度测量时,科技人员习惯于采用横向莫尔条纹作为测量信号,较少对纵向莫尔条纹进行研究。本文根据径向圆光栅形成的莫尔条纹的原理,对纵、横向莫尔条纹的特性进行了理论分析、研究及实验验证。
In this paper, based on the principle of moire fringes formed by radial circular grating, the velocity and acceleration characteristics of moire fringe signals in longitudinal and transverse moire are briefly analyzed. The results of this study are more suitable for the future selection of radial circular grating The formation of moire fringes has some guiding significance. Metrology grating as a sophisticated measurement tools, has been widely used in various fields. It combines the three technologies of light, electricity and electricity organically to show its advantages in length, angle measurement and automatic control. When using Moiré fringes formed by radial circular gratings for angle measurement, scientists are accustomed to using transverse moiré fringes as the measurement signal, and less researches on longitudinal moiré fringes. Based on the principle of moire fringes formed by the radial circular grating, the characteristics of longitudinal and transverse moire fringes are theoretically analyzed, studied and verified.