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12条,第1-10条 帮助

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Study on Breakdown Voltage and Minimum Ignition Energy of Sparking System for Free-Piston Linear Generator 会议论文  OAI收割
APR 06-08, 2016
作者:  
Zeng, Dequan;  Gu, Shuai;  Sun, Peng;  Zhao, Fei;  Chen, Jinhua
  |  收藏  |  浏览/下载:37/0  |  提交时间:2018/01/12
Effects of Initial Temperature on the Performances of Free Piston Linear Generator 会议论文  OAI收割
JUN 05-07, 2016
作者:  
Zhang, Chi;  Guo, Shuai;  Zhao, Fei;  Chen, Jinhua;  Sun, Peng
  |  收藏  |  浏览/下载:15/0  |  提交时间:2018/01/12
DC Bus Voltage Control of a Free-Piston Linear Generator 会议论文  OAI收割
APR 06-08, 2016
作者:  
Zhang, Chi;  Gao, Yanxia;  Sun, Peng;  Chen, Jinhua;  Zhao, Fei
  |  收藏  |  浏览/下载:25/0  |  提交时间:2018/01/12
Fault Recovery Control Strategy of a Two-Stroke Free-Piston Linear Generator 会议论文  OAI收割
APR 06-08, 2016
作者:  
Chi, Z;  Chen, Jinhua;  Zhao, Fei;  Zeng, Dequan;  Mao, Lianlian
  |  收藏  |  浏览/下载:22/0  |  提交时间:2018/01/12
Electro-optical imaging system identification using pseudo-random binary pattern (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Le Y.; Jian W.; Jianzhong Z.; Qiang S.; Jianzhuo L.
收藏  |  浏览/下载:22/0  |  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.  
Linearization Method and Linear Complexity 期刊论文  OAI收割
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2008, 卷号: E91-A, 期号: 1, 页码: 22-29
Hidema Tanaka
  |  收藏  |  浏览/下载:19/0  |  提交时间:2010/05/14
Chip design of linear CCD drive pulse generator and control interface (EI CONFERENCE) 会议论文  OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies, November 2, 2005 - November 5, 2005, Xian, China
作者:  
Sun H.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
CCD noises and their causes are analyzed. Methods to control these noises  such as Correlated Double Sampling (CDS)  filtering  cooling  clamping  and calibration are proposed. To improve CCD sensor's performances  the IC  called Analog Front End (AFE)  integration of CDS  clamping  Programmable Gain Amplifier (PGA)  offset  and ADC  which can fulfill the CDS and analog-to-digital conversion  is employed to process the output signal of CCD. Based on the noise control approaches  the idea of chip design of linear CCD drive pulse generator and control interface is introduced. The chip designed is playing the role of (1) drive pulse generator  for both CCD and AFE  and (2) interface  helping to analysis and transfer control command and status information between MCU controller and drive pulse generator  or between global control unit in the chip and CCD/AFE. There are 6 function blocks in the chip designed  such as clock generator for CCD and AFE  MCU interface  AFE serial interface  output interface  CCD antiblooming parameter register and global control logic unit. These functions are implemented in a CPLD chip  Xilinx XC2C256-6-VQ100  with 20MHz pixel frequency  and 16-bit high resolution. This chip with the AFE can eliminate CCD noise largely and improve the SNR of CCD camera. At last  the design result is presented.  
A fast correlation attack on the shrinking generator 期刊论文  iSwitch采集
Topics in cryptology - ct-rsa 2005, proceedings, 2005, 卷号: 3376, 页码: 72-86
作者:  
Zhang, B;  Wu, HJ;  Feng, DG;  Bao, F
收藏  |  浏览/下载:14/0  |  提交时间:2019/05/10
Security analysis of the generalized self-shrinking generator 期刊论文  iSwitch采集
Information and communications security, proceedings, 2004, 卷号: 3269, 页码: 388-400
作者:  
Zhang, B;  Wu, HJ;  Feng, DG;  Bao, F
收藏  |  浏览/下载:38/0  |  提交时间:2019/05/10