Stitching swing arm profilometer test for large aperture aspherics

作     者：Ling Xiong Erhui Qi Xiao Luo Feng Zhang Donglin Xue Xuejun Zhang 熊玲;戚二辉;罗霄;张峰;薛栋林;张学军

作者机构：Key Laboratory of Optical System Advanced Manufacturing TechnologyChangchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2019年第17卷第11期

页      面：75-79页

核心收录：

学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(Nos.61605202 and 6180031521) Key Project of Chinese National Programs for Fundamental Research and Development(No.2016YFB0500100) Equipment Pre-research Project(No.30502010501HT01) Civil Space Pre-research Program(No.D040101) 

主　　题：system mirror swing 

摘      要：We implemented a stitching swing arm profilometer(SSAP) test for the inner and outer regions of a large aspheric surface with a short arm. The SSAP was more capable of improving sampling density of surface and was less sensitive to system error, like vibration noise and air-table noise. Firstly, a calculation model was built to evaluate the sampling density of the SSAP test. Then, sensitivity to system noise was tested when different lengths of arm were used. At the end, an experiment on a 3 m diameter aspheric mirror was implemented, where test efficiency was promoted, and high sampling density was achieved.