论文部分内容阅读
提出在以半导体激光器为光源的迈克尔逊干涉系统的一臂中，插入一 栅距具特定分布的衍射光栅，使干涉场中各点的光程与待测合作目标的光程成 对应相等的关系，进而可使目标的距离相应地反映于干涉平面上，实现绝对测距 的目的。
It is proposed that a diffraction grating having a grating pitch and a specific distribution be inserted into one arm of a Michelson interferometer system using a semiconductor laser as a light source so that the optical path length of each point in the interference field is equivalent to the optical path of the target to be measured , So that the target distance can be reflected in the interference plane corresponding to achieve the purpose of absolute ranging.