中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Development and prospect of digital twin model for stray light of spaceborne telescope 会议论文  OAI收割
Sydney, NSW, Australia, 2023-06-01
作者:  
Wu, Yunan;  Huang, Yi;  Li, Xuyang;  Chen, Qinfang;  Li, Yunfei
  |  收藏  |  浏览/下载:201/0  |  提交时间:2023/12/26
中国中药行业格局及未来展望 期刊论文  OAI收割
中国新药杂志, 2020, 卷号: 29, 期号: 16, 页码: 1845
作者:  
王春丽;  高月红;  黄瑶庆;  李子艳;  毛艳艳
  |  收藏  |  浏览/下载:27/0  |  提交时间:2020/12/24
Miniature field bus data recorder (EI CONFERENCE) 会议论文  OAI收割
2010 WASE International Conference on Information Engineering, ICIE 2010, August 14, 2010 - August 15, 2010, Beidaihe, Hebei, China
Chen C.-Q.; Ji Y.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
The common bus on bus control is RS232. With the development of field bus technology  field bus technology is widely used in data recorder. How to real time record the data of field bus in the experiment and provide the test data for process reconstruction is a very important problem. This paper introduces a kind of data acquisition and storage based on field bus. Its core design is C8051F040 microprocessor and SJA1000  a widely used field bus controller. This paper presents the basic constitution of this field bus data recorder and set forth its hardware and software. This field bus data recorder field bus real-time gathers the information and storage data on the CF card. The result of the experiment shows the system is highly reliable for data acquisition and storage  which should have abroad application prospect for data record experiment. 2010 IEEE.  
Design of high-resolution fourier transform lens (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Zhang L.;  Zhang L.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
With the development of optical information processing  high-resolution Fourier transform lens has often been used in holographic data storage system  spatial filtering and observation of particles. This paper studies the optical design method of high-resolution Fourier transform optical lenses system  which could be used in particles observation and holographic data storage system. According to Fourier transform relation between object and its frequency plane and the theory of geometrical optics  the system with working wavelength 532nm and resolution 3 m was designed based on ZEMAX. A multi-configuration method was adopted to optimize the system's lenses. In the optical system  a diaphragm was placed at the system's spectrum plane and the system demanded a low vacuum to cut down the influences of atmosphere and other particles. The result of finite element analysis indicated that the influences of vacuum pumping to optics spacing and mirror surface shape very minor  and the imaging quality not being affected. This system has many advantages  such as simple structure  good image quality and a high resolution of 3 m. So it has a wide application prospect and can be used both in holographic data storage system and particles observation.