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Department光电工程总体研究室(一室)
Structure and mechanical design for a large-aperture telescope
Tan, Yufeng1,2,3; Wang, Jihong1,2; Ren, Ge1,2; Ren, Xiaoli1,2,3; Xie, Zongliang1,2,3; Li, Dong1,2,3
Source PublicationProceedings of SPIE - FOURTH SEMINAR ON NOVEL OPTOELECTRONIC DETECTION TECHNOLOGY AND APPLICATION
Volume10697
Pages1069734
2018
Language英语
ISSN0277-786X
DOI10.1117/12.2314933
Indexed BySCI ; Ei
WOS IDWOS:000435407700104
EI Accession Number20182805540016
SubtypeC
AbstractFor a better understanding and forecasting of the universe, the high resolution observations are needed. The large-aperture telescope is an integrated success with a combination of material, mechanics, optics and electronics. The telescope is a classic Cassegrain configuration with open structure, alt-azimuth mount, and retractable dome. The instrumentation has a rotating mass of approximately 52 tons and stands over 9 m tall. The 3-m aperture primary mirror is a honeycomb lightweighted mirror with fused silica material and active cooling. The paper will address preliminary design and development of the telescope mount structure, axes drive system, encoder mount and primary mirror system. The structure must have the best performance of stiffness and stability to demand an acceptable image quality. As the largest optical element of the telescope, primary mirror must be well controlled and protected both during operational and non-operational periods. An active cooling system of primary mirror is provided by a flushing subsystem at the front side and sucking subsystem on the central hole to keep the temperature of the facesheet close to that of ambient air. A two-layer mirror cover mounted on the elevation ring is proposed to protect the optical elements and inner beam tube from dust, dirt and debris. Furthermore, the latest plans for future upgrades will be also described.
Keywordtelescope mount structure bearing drive cooling system primary mirror
WOS KeywordMIRROR ; MOUNT
EI KeywordsBearings (structural) ; Cooling ; Cooling systems ; Drives ; Fused silica ; Mirrors ; Structure (composition) ; Thermoelectric equipment
Conference Name4th Seminar on Novel Optoelectronic Detection Technology and Application4th Seminar on Novel Optoelectronic Detection Technology and Application
Conference DateOCT 24-26, 2017OCT 24-26, 2017
Conference PlaceNanjing, PEOPLES R CHINANanjing, PEOPLES R CHINA
EI Classification Number401.1 Bridges ; 615.4 Thermoelectric Energy ; 641.2 Heat Transfer ; 741.3 Optical Devices and Systems ; 812.3 Glass ; 951 Materials Science
Citation statistics
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/9127
Collection光电工程总体研究室(一室)
Corresponding AuthorTan, Yufeng
Affiliation1.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China;
2.Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu; 610209, China;
3.University of Chinese Academy of Sciences, Beijing; 100039, China
Recommended Citation
GB/T 7714
Tan, Yufeng,Wang, Jihong,Ren, Ge,et al. Structure and mechanical design for a large-aperture telescope[C],2018:1069734.
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