论文部分内容阅读
大家知道,现有两光栅迭合时的莫尔条纹方程的讨论,都是在两光栅尺面相互平行的条件下进行的。但是,在光栅副工作过程中,两光栅尺面在空间实际上可处于随意位置而并不平行。那末,在此情况下,空间两光栅的莫尔条纹方程将如何表达?同时,两光栅面间空间角的变化又将如何改变莫尔条纹的宽度及方向,进而造成对光栅系统测量精度的影响?本文利用建立空间光栅平面与空间栅线方程的办法,理论求导了空间两光栅的莫尔条纹方程;并就两光栅面间空间角的变化对条纹宽度及方
As we all know, the discussion of the moiré fringe equation of the existing two gratings is carried out under the condition that the two gratings are parallel to each other. However, during the grating work, the two grating ruler surfaces may actually be at random locations in space and not parallel. In this case, how will the Moiré fringe equation of the two gratings in space be expressed and how the variation of the spatial angle between the two gratings in turn changes the width and direction of the moiré fringes, which in turn will affect the measurement accuracy of the grating system In this paper, we establish the Moiré fringe equation of two rasters by using the method of establishing raster plane and space raster equation in space.