Dr. Yuan Qian Profile

Dr. Yuan Qian

at Purple Mountain Observatory CAS

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 13 December 2020 Presentation + Paper

Mapping diffuse emission in Lyman UV band

Li Ji, Zheng Lou, Jinlong Zhang, Keqiang Qiu, Shuangying Li, Wei Sun, Shuping Yan, Shuinai Zhang, Yuan Qian, Sen Wang, Klaus Werner, Taotao Fang, Tinggui Wang, Jürgen Barnstedt, Sebastian Buntrock, Mingsheng Cai, Wen Chen, Lauro Conti, Lei Deng, Sebastian Diebold, Shaojun Fu, Jianhua Guo, Lars Hanke, Yilin Hong, Christoph Kalkuhl, Norbert Kappelmann, Thomas Kaufmann, Shijun Lei, Fu Li, Xinfeng Li, Wei Liu, Kevin Meyer, Thomas Rauch, Ping Ruan, Daniel Schaadt, Thomas Schanz, Qian Song, Beate Stelzer, Zhanshan Wang, Jianfeng Yang, Wei Zhang

Proceedings Volume 11444, 1144407 (2020) https://doi.org/10.1117/12.2561839

KEYWORDS: Ultraviolet radiation, Imaging systems, Multichannel imaging systems, Optical design, Spectral resolution, Microchannel plates, Sensors, Space operations, Hydrogen, Galactic astronomy

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Proceedings Article | 13 December 2020 Poster + Paper

Initial development of high accuracy carbon fiber reinforced plastics (CFRP) reflector segment for the 60-meters submillimeter telescope

Yuan Qian, Xufeng Hao, Bing Li, Yaohui Shi, Deng’an Cai, Jian Deng, Zheng Lou, Yingxi Zuo

Proceedings Volume 11451, 114512H (2020) https://doi.org/10.1117/12.2560209

KEYWORDS: Reflectors, Submillimeter telescopes, Carbon, Telescopes, Reflector telescopes, Optical instrument design, Prototyping, Astronomy, Reflector design, Structural design

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SPIE Journal Paper | 3 September 2019

Deformation behavior of high accuracy carbon fiber-reinforced plastics sandwiched panels at low temperature

Yuan Qian, Xufeng Hao, Yaohui Shi, Deng’an Cai, Nan Wu, Zheng Lou, Yinxi Zuo

JATIS, Vol. 5, Issue 03, 034003, (September 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.3.034003

KEYWORDS: Prototyping, Finite element methods, Carbon, Coating, Aluminum, Temperature metrology, Reflectors, Structured optical fibers, Photogrammetry, Composites

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SPIE Journal Paper | 22 April 2019

Reflector surface alignment based on antenna gain measurements under perturbations

Zheng Lou, Yingxi Zuo, Xiaoling Zhang, Haoran Kang, Yuan Qian

JATIS, Vol. 5, Issue 02, 024003, (April 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.2.024003

KEYWORDS: Reflectors, Antennas, Actuators, Signal to noise ratio, Near field, Telescopes, Spatial resolution, Holography, Radio telescopes, Transmitters

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Proceedings Article | 12 March 2019 Paper

Gravity load effect analysis and modal analysis of 1.2meter terahertz antenna for near-field holographic measurement

Mingzhu Zhang, Hairen Wang, Yingxi Zuo, Yuan Qian, Ji Yang

Proceedings Volume 11023, 110231K (2019) https://doi.org/10.1117/12.2521693

KEYWORDS: Antennas, Reflectors, Near field, Holography, Finite element methods, Error analysis, Modal analysis, 3D modeling, Electroluminescence

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Proceedings Article | 19 October 2016 Paper

Optical design study of the Wide Field Survey Telescope (WFST)

Zheng Lou, Ming Liang, Dazhi Yao, Xianzhong Zheng, Jingquan Cheng, Hairen Wang, Wei Liu, Yuan Qian, Haibin Zhao, Ji Yang

Proceedings Volume 10154, 101542A (2016) https://doi.org/10.1117/12.2248371

KEYWORDS: Optical design, Telescopes, Active optics

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Proceedings Article | 27 July 2016 Paper

Dynamic analysis of DATE5 based on the physically realistic environmental disturbances

Hairen Wang, Yuan Qian, Zheng Lou, Yingxi Zuo, Ji Yang, Hans Kaercher

Proceedings Volume 9906, 990629 (2016) https://doi.org/10.1117/12.2231610

KEYWORDS: Telescopes, Servomechanisms, Spectrum analysis, Domes, Reflectors, Finite element methods, 3D modeling, Aluminum, Stereolithography, Astronomy

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Proceedings Article | 27 July 2016 Paper

Prototyping and environmental experiments of an aluminum panel for the Dome A 5m Terahertz Explorer (DATE5)

Zheng Lou, Yuan Qian, Yingxi Zuo, Hairen Wang, Jingquan Cheng, Ji Yang, Yuan Lu, Huan Zhang

Proceedings Volume 9906, 99061P (2016) https://doi.org/10.1117/12.2231553

KEYWORDS: Aluminum, Reflector telescopes, Telescopes, Reflectors, Prototyping, Temperature metrology, Climatology, Reflector telescopes, Heat flux, Humidity, Photogrammetry

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Dome A 5m Terahertz Explorer (DATE5) is a proposed telescope to be deployed at Dome A, Antarctica to explore the excellent terahertz observation condition unique to the site. One of the key challenges of the telescope is to realize and maintain the required 10 μm rms overall reflector surface accuracy under the extreme site conditions and unmanned operating mode. Aluminum panels on carbon fiber backup structures is one of the candidate options for the 5 meter main reflector. For aluminum panels, three major technical risks were identified: 1) the large CTE of aluminum causes significant panel deformation due to the large seasonal soak temperature change; 2) internal stress may cause additional surface deformation when operating under a cold environment; 3) reflector panels working at Dome A run high risks of icing (which degrades antenna efficiency and increases noise) and automatic active de-icing mechanisms has to be implemented on the panels. In order to verify the feasibility of the aluminum panels for DATE5 and identify possible technical risks, a prototype panel was fabricated and went through rigorous tests. The manufacture error at the room temperature is 3.2 μm rms, which meets the budget. The panel surface is then measured at various ambient temperatures down to -60°C in a climate chamber using photogrammetric techniques. The additional surface error at the low temperatures is found to be mainly contributed by defocusing error, and the dependence of the panel focal length on temperature is well predictable. No additional surface error caused by internal stress has been observed. Next, the icing condition of the panel is analyzed and a prototype de-icing system based on polyimide film heaters was installed on the panel. The performance of the de-icing system was tested in a climate chamber as well as in the field experiments to simulate a variety of operating environments. The experiments indicate that the power required for de-icing the entire main reflector is less than 1kW and the temperature field produced by the de-icing system has trivial effect on the surface accuracy of the panel. This study indicates that aluminum panels have the potential to meet the reflector surface error budget under the harsh environment of Dome A.

Proceedings Article | 22 July 2016 Paper

Initial development of high-accuracy CFRP panel for DATE5 antenna

Yuan Qian, Zheng Lou, Xufeng Hao, Jing Zhu, Jingquan Cheng, Hairen Wang, Yingxi Zuo, Ji Yang

Proceedings Volume 9912, 99121D (2016) https://doi.org/10.1117/12.2231254

KEYWORDS: Telescopes, Prototyping, Antennas, Structural design, Carbon, Skin, Reflectors, Composites, Aluminum, Ions

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SPIE Journal Paper | 23 March 2016

Hybrid optimization methodology of variable densities mesh model for the axial supporting design of wide-field survey telescope

Hairen Wang, Zheng Lou, Yuan Qian, Xianzhong Zheng, Yingxi Zuo

OE, Vol. 55, Issue 03, 035105, (March 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.3.035105

KEYWORDS: Optimization (mathematics), Mirrors, Finite element methods, Optical instrument design, Telescopes, Optical engineering, Tolerancing, Photovoltaics, Astronomical telescopes, Structural design

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Showing 5 of 10 publications

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