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Dwell time calculation for computer-controlled large-tool
Fan, Bin1,2; James, H.Burge2; Buddy, Martin2; Zeng, Zhige1; Li, Xiaojin1; Zhou, Jiabin1; Fan, B. (fanbin@ioe.ac.cn)
Volume8415
Pages84150A
2012
Language英语
ISSN0277786X
DOI10.1117/12.978651
Indexed ByEi
Subtype会议论文
AbstractThe Computer-controlled Large-tool such as the stressed-lap which firstly developed in the Steward Observatory Mirror Lab (SOML) [1]and the Computer controlled active lap which developed in the IOE (Institute of Optics and Electronics, Chinese Academy of Science) [2,3] ,those large tools are controlled by computer to manufacturing large optics, especially for grinding with loose abrasive and polishing with slurry. Comparing the fixed orbital lap, computer-controlled largetool can bend its lap surface timely to match the local sub-aperture, so it always strike the high area preferentially, due to its large diameter , computer-controlled large-tool possess highly remove efficiency and generate less middle-frequency and high-frequency errors comparing some small tools such as computer controlled optical surface(CCOS) [4], but on the other hand how to calculate the dwell time for those computer-controlled large-tool becomes a challenge comparing those small tools. Based on the mathematical removal equation for computer controlled active lap we have none negative least square algorithm to calculate the dwell time, after the simulation, a optimized algorithm based on none negative least square is provided, the dwell time calculated by this optimized algorithm meet the wanted removal volume with little residual errors. © 2012 SPIE.; The Computer-controlled Large-tool such as the stressed-lap which firstly developed in the Steward Observatory Mirror Lab (SOML) [1]and the Computer controlled active lap which developed in the IOE (Institute of Optics and Electronics, Chinese Academy of Science) [2,3] ,those large tools are controlled by computer to manufacturing large optics, especially for grinding with loose abrasive and polishing with slurry. Comparing the fixed orbital lap, computer-controlled largetool can bend its lap surface timely to match the local sub-aperture, so it always strike the high area preferentially, due to its large diameter , computer-controlled large-tool possess highly remove efficiency and generate less middle-frequency and high-frequency errors comparing some small tools such as computer controlled optical surface(CCOS) [4], but on the other hand how to calculate the dwell time for those computer-controlled large-tool becomes a challenge comparing those small tools. Based on the mathematical removal equation for computer controlled active lap we have none negative least square algorithm to calculate the dwell time, after the simulation, a optimized algorithm based on none negative least square is provided, the dwell time calculated by this optimized algorithm meet the wanted removal volume with little residual errors. © 2012 SPIE.
Conference NameProceedings of SPIE: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes
Conference Date2012
Citation statistics
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7587
Collection先光中心
Corresponding AuthorFan, B. (fanbin@ioe.ac.cn)
Affiliation1. Institute of Optics and Electronics, Chinese Academy of Science, 610209, Chengdu, China
2. Steward Observatory Mirror Lab, University of Arizona, 527 National Championship Drive, Tucson, AZ 85721, United States
Recommended Citation
GB/T 7714
Fan, Bin,James, H.Burge,Buddy, Martin,et al. Dwell time calculation for computer-controlled large-tool[C],2012:84150A.
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