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Research progress of co-phasing inductance edge sensor for Chinese extremely large telescope
Yong Zhang; Qimeng Wang; Yeping Li; Guohua Zhou; Jijun Ni; Aihua Li; Hongmei Li; Yizhong Zeng
2014-07-22
Source PublicationGround-based and Airborne Telescopes V
Volume9145
PagesVol.9145 4Y-1-9
Conference Date2014-6-22
Conference PlaceMontréal, Quebec, Canada
Funding OrganizationSPIE
PublisherSPIE
Abstract
Edge sensor is one of the most important technologies for the extremely large segmented primary telescopes like Keck, Thirty Meter Telescope (TMT), European Extremely Large Telescope (E-ELT) and Chinese Future Giant Telescope (CFGT) for control of out-of-plane degrees of freedom. Different from the capacity edge sensor from Keck and TMT, one kind of an inductance edge sensor is proposed and applied with the similar principle and configuration, fine aligned and tested in this paper to try to realize the same co-focusing or co-phasing maintenance purpose and high accuracy of relative piston and tip/tilt degrees of freedom of the segments. The sensor is also considered and modified to much more
sensitive to dihedral angle between the neighboring segments. Finally some preliminary conclusions are reached.
KeywordExtremely Large Telescope Segmented Mirror Active Optics Edge Sensor Inductance Sensor
Subject Area主动光学
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/807
Collection中国科学院南京天文光学技术研究所_会议论文
望远镜新技术研究室_会议论文
Recommended Citation
GB/T 7714
Yong Zhang,Qimeng Wang,Yeping Li,et al. Research progress of co-phasing inductance edge sensor for Chinese extremely large telescope[C]:SPIE,2014:Vol.9145 4Y-1-9.
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