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The research progress of eddy current edge sensors for Chinese extremely large telescope
Jijun Ni; Yong Zhang
Conference NameSPIE Ground-based and Airborne Telescopes VII(Vol.10700)
Source PublicationGround-based and Airborne Telescopes VII
Conference Date2018-6-10
Conference PlaceAustin, Texas, United States
The segmented mirror active optics technology is one of the key technologies for the extremely large telescope, while edge sensor is one of the essential core components of active optics for the co-phasing maintenance of all segmented mirrors. The main properties of these edge sensors are of high precision of nanometers, high linearity, and low sensitivity to temperature and humidity fluctuations as well as high reliability. This paper presents an eddy current edge sensor design developed cooperatively by Nanjing Institute of Astronomical Optics & Technology and University of Science and Technology of China. The stage work performance results of eddy current sensor prototype under representative operational conditions are also presented.
KeywordEdge Sensor Segmented Mirrors Eddy Current Sensor Chinese Extremely Large Telescope
Subject Area天文技术与方法
Document Type会议论文
Recommended Citation
GB/T 7714
Jijun Ni,Yong Zhang. The research progress of eddy current edge sensors for Chinese extremely large telescope[C],2018.
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