采用罗奇光栅离焦投影的位相测量轮廓术

被引:23
作者
苏显渝
周文胜
机构
[1] 四川大学光电系
关键词
轮廓测量; 相位测量; 罗奇光栅; 三维测量; 计算机模拟;
D O I
暂无
中图分类号
学科分类号
摘要
本文提出一种采用罗奇光栅离焦投影的位相测量轮廓术。给出由离焦引起的光学低通滤波和N-位相算法表征的数字滤波的解析描述。证明由于采用罗奇光栅离焦投影而引起的误差只具有很小量级,在大多数实际应用中可以忽略。文中给出了计算机模拟和实验结果。
引用
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页码:8 / 16
页数:9
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