Author(s): WU Junfeng, LIU Zhigang, LIU Lili, LIU Yongmei, YAN Honghong, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China
Pages: 520-523
Year: 2014 Issue:  6
Journal: Optical Technique
Keyword:  optical measurement; LAMOST; minimum matching method; front illuminate method; position matching; positioning parameters;
Abstract: In order to ensure that the Large Sky Area Multi-Object Fiber Spectroscopy Telescope(LAMOST)system can run accurately,it is necessary to measure the position of optical fibers on the focal plate of LAMOST.It is needed to match on the position of light spot extracted by front illuminate with the actual positions of units.During the study of position matching,a new pattern(the minimum matching method)based on the old one and more appropriate to front illuminate method is presented.With the new method,problems found in matching of front illuminate method,such as excessive amounts of light spots,random location,complicated calculations,are solved effectively.