中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Observation and analysis of lower-hybrid-current-drive density limit in EAST 期刊论文  OAI收割
NUCLEAR FUSION, 2022, 卷号: 62
作者:  
Li, M. H.;  Baek, S. G.;  Wallace, G. M.;  Ding, B. J.;  Wu, C. B.
  |  收藏  |  浏览/下载:52/0  |  提交时间:2022/12/23
Numerical investigation of ECCD under the CFETR concept design parameters 期刊论文  OAI收割
FUSION ENGINEERING AND DESIGN, 2022, 卷号: 182
作者:  
He, L. H.;  Zheng, P. W.;  Zheng, Z. H.;  Chen, J. L.;  Yu, T.
  |  收藏  |  浏览/下载:41/0  |  提交时间:2022/12/23
Evaluation of electron cyclotron current drive performance for CFETR 期刊论文  OAI收割
Plasma Science & Technology, 2019, 卷号: 21
作者:  
Wei Wei;  Wang Xiaojie;  Li Miaohui;  Ding Bojiang
  |  收藏  |  浏览/下载:32/0  |  提交时间:2020/11/25
High resolution gray-scale modulation method based on linear superposition for LED displays (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Control, Automation and Systems Engineering, CASE 2011, July 30, 2011 - July 31, 2011, Singapore, Singapore
Feng Y.; Xu X.; Miao C.; Ding T.
收藏  |  浏览/下载:11/0  |  提交时间:2013/03/25
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.  
The application of auto-controlled liquid crystal light valve arrays to photolithography shutter (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Chen Y.
收藏  |  浏览/下载:14/0  |  提交时间:2013/03/25
Photolithography shutter is usually used to control exposure in order to obtain patterns of code disc and metrology grating which are the core components of optical shaft encoder. But perforated film as photolithography shutter has many disadvantages such as taking too long time to perforate  easily making wrong code  lower reusable ratio. Mathematical models for resist property  luminous efficiency and exposure have been established by deducing their relations for avoiding the disadvantages  which provides the theory of using liquid crystal light valve (LCLV) replacing proforated film. Based on operating principles of LCLV and control theories of photolithography shutter  the principle diagram of control circuit of LCLV arrays has been designed according to theirs control principles. In the control system  LCLV arrays as photolithography shutter are realized by adopting DS75451 to drive them and using AT89C51 chip to control them. By photolithographic experiment  the patterns of code disc are good  the edges of lines are vertical  it indicates LCLV arrays as photolithography shutter may control exposure and light passing accords with the intending requires. It proves using LCLV arrays replacing perforated film as photolithography shutter is feasible completely.  
Enhance Lower Hybrid Current Drive Experiments on HT-7 Tokamak 期刊论文  OAI收割
Plasma Science & Technology, 2003, 卷号: 5
作者:  
Shen Weici;  Kuang Guangli;  Liu Yuexiu;  Ding Bojiang;  Shi Yaojiang
  |  收藏  |  浏览/下载:77/0  |  提交时间:2020/11/23