摘要
本文提出了基于横向莫尔条纹的自准直测角方法,用遮光原理分析了莫尔条纹的位移放大作用.并基于该方法搭建了原理光路,得到的莫尔条纹信号稳定且能够满足测量需求.在此基础上对系统进行了定量标定,简化了数据处理步骤,实现了动态测量,系统分辨率达到10″,进一步明确将该方法应用到自准直仪中可以有效提高仪器分辨率.
Combining with lateral displacement amplification of Moiré fringe and auto-collimation angle measuring principle, based on the lateral Moiré fringe of auto-collimation angle measurement method, is analyzed by using the shading principle of Moiré fringe displacement amplification effect. On the basis of the method to build the principle of the optical path, the Moiré fringe signal is stable and can satisfy the measurement requirements. On the basis of the system, data processing steps are simplified and dynamic measurement is realized. The quantitative calibration experiment results show that the system resolution up to 10″, applying this method to the autocollimator can significantly improve the resolution.
作者
朱超逸
陆炜鑫
高红
王玫
ZHU Chao-yi;LU Wei-xin;GAO Hong;WANG Mei(School of Instrumentation and Optoelectronic Engineering,Beihang University,Beijing 100191,China;School of Energy and Power Engineering,Beihang University,Beijing 100191,China;School of Physics,Beihang University,Beijing 100191,China)
出处
《大学物理》
2020年第5期74-77,共4页
College Physics
基金
基础研究培养计划(YWF-15-WLXY-020)
北京航空航天大学本科生精品课程(材料物理课程教学改革)
北京航空航天大学教学研究与实践项目资助。
关键词
莫尔条纹
自准直测角
高分辨率
Moiré fringe
auto-collimation angle measurement
high resolution
