中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共8条,第1-8条 帮助

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Wavelength Nonlinearity of Multi-Channel Solar Spectrometer with Common Grating Rotating Axis 期刊论文  OAI收割
Zhongguo Jiguang/Chinese Journal of Lasers, 2019, 卷号: 46, 期号: 9
作者:  
Z.Li;  Y.Huang;  S.Wang;  M.Yu;  G.Lin
  |  收藏  |  浏览/下载:35/0  |  提交时间:2020/08/24
Alignment for sparse aperture telescope with serial robot arm 期刊论文  OAI收割
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering, 2018, 卷号: 47, 期号: 8
作者:  
An, Qichang;  Zhang, Jingxu;  Yang, Fei;  Zhao, Hongchao
  |  收藏  |  浏览/下载:16/0  |  提交时间:2019/09/17
Structure design and wavelength accuracy analysis of ultraviolet double grating spectrometer 期刊论文  OAI收割
Chinese Optics, 2018, 卷号: 11, 期号: 2, 页码: 219-230
作者:  
Cao, Dian-Sheng;  Lin, Guan-Yu;  Yang, Xiao-Hu;  Zhang, Zi-Hui;  Wen, Bao-Peng
  |  收藏  |  浏览/下载:14/0  |  提交时间:2019/09/17
The design of aerial camera focusing mechanism 会议论文  OAI收割
applied optics and photonics, china: optical test, measurement, and equipment, aopc 2015, beijing, china, 2015-05
作者:  
Hu, Changchang;  Yang, Hongtao;  Niu, Haijun
收藏  |  浏览/下载:15/0  |  提交时间:2016/01/07
Effects of Ti2448 half-pin with low elastic modulus on pin loosening in unilateral external fixation 期刊论文  OAI收割
Journal of Materials Science-Materials in Medicine, 2011, 卷号: 22, 期号: 6, 页码: 1579-1588
K. Zheng; X. K. Li; J. Fu; X. L. Fan; P. Wang; Y. L. Hao; S. J. Li; H. B. Fan; Z. Guo
收藏  |  浏览/下载:27/0  |  提交时间:2012/04/13
Research on kinematics of modular reconfigurable robots 会议论文  OAI收割
1st Annual IEEE International Conference on Cyber Technology in Automation, Control, and Intelligent Systems, CYBER 2011, Kunming, China, March 20-23, 2011
作者:  
Pan XA(潘新安);  Wang HG(王洪光);  Jiang Y(姜勇);  Yu C(余岑)
收藏  |  浏览/下载:21/0  |  提交时间:2012/06/06
Application of precision harmonic gear drive in focusing mechanism of space camera (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:26/0  |  提交时间:2013/03/25
A kind of precision harmonic gear drive in the focusing mechanism of space camera is studied  which adopt external meshing complex wave transmission mode. Wave generator is combined with an elliptic cam and a flexible bearing around it. Flexspline is a structure of single wave with the same teeth. The output shaft is supported by a single cross-roller bearing. Ball screws connected the output shaft translate the rotational motion to the linear motion  and drive the focusing mirror repeated moving along the linear guide. The output rigid wheel is connected with absolute encoder to detect displacement of focusing movement. It has the characteristics of big transmission ratio  high precision  compact structure  high efficiency and smooth running etc. According to the practical application of this harmonic gear drive in the space camera  the location relationship between the displacement of focusing structure and the focal plane movement is derived  and the system error is analyzed  its accuracy is tested with the open-loop control method. Experimental results show that transmission ratio of the instrument is 1:70  repeated positional accuracy is 2m  which meet the requirements for use. 2010 SPIE.  
Mechanical interleaving assembly of TDICCD focal plane for space camera (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Ren J.-Y.;  Zhang X.-X.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
TDICCD assembly is a major method of acquiring wide field for space camera. For the demand of space camera's wide view field and high resolution  the technique of mechanical interleaving assembly is discussed. Its principle  method of adjusting and testing as well as the structure of focal plane are described. Using mechanical tangent-screws adjusting method  the assembly with TDI CCDs for wide field space camera focal plane is finished on the facility which is composed of a long work-distance microscope and a negative pressure and adsorption guide apparatus. The assembly length of TDICCD focal plane for wide field space camera reaches 560mm  and the measuring error is not more than 3.2 m  the mechanical interleaving assembly method has effect of zero clearance and can achieve good image quality.