利用莫尔条纹的准正弦特性的三维轮廓术

Three-Dimensional Contouring by Using Quasi-Sine Characteristic of Moire Pattern

分析了两个矩形光栅迭合产生的莫尔条纹的光强分布特性，通过选择适当的光栅参数，可得到一个近似的正弦分划板，并把它用于三维面形测量中．实验结果表明，这种方法简单，易于自动处理，有广泛的实用价值．

his paper analyzes optical transmission characteristic of moire fringes that appeared when two Ronchi gratings of the same frequencies are superimposed. A quasisine divided block can be obtained by selected the proper grating constant and be used in 3-D shape measurement. The experiment result shows that the method is simple and practical, and easy to realize automatid processing.