中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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A Robust Energy/Area-Efficient Forwarded-Clock Receiver With All-Digital Clock and Data Recovery in 28-nm CMOS for High-Density Interconnects 期刊论文  OAI收割
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, 2016, 卷号: 24, 期号: 2, 页码: 578-586
作者:  
Chen, Shuai;  Li, Hao;  Chiang, Patrick Yin
  |  收藏  |  浏览/下载:27/0  |  提交时间:2019/12/13
Design of motion adjusting system for space camera based on ultrasonic motor (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者:  
Sun Z.
收藏  |  浏览/下载:85/0  |  提交时间:2013/03/25
Drift angle is a transverse intersection angle of vector of image motion of the space camera. Adjusting the angle could reduce the influence on image quality. Ultrasonic motor (USM) is a new type of actuator using ultrasonic wave stimulated by piezoelectric ceramics. They have many advantages in comparison with conventional electromagnetic motors. In this paper  some improvement was designed for control system of drift adjusting mechanism. Based on ultrasonic motor T-60 was designed the drift adjusting system  which is composed of the drift adjusting mechanical frame  the ultrasonic motor  the driver of Ultrasonic Motor  the photoelectric encoder and the drift adjusting controller. The TMS320F28335 DSP was adopted as the calculation and control processor  photoelectric encoder was used as sensor of position closed loop system and the voltage driving circuit designed as generator of ultrasonic wave. It was built the mathematic model of drive circuit of the ultrasonic motor T-60 using matlab modules. In order to verify the validity of the drift adjusting system  was introduced the source of the disturbance  and made simulation analysis. It designed the control systems of motor drive for drift adjusting system with the improved PID control. The drift angle adjusting system has such advantages as the small space  simple configuration  high position control precision  fine repeatability  self locking property and low powers. It showed that the system could accomplish the mission of drift angle adjusting excellent. 2011 SPIE.  
永磁同步交流伺服驱动关键技术研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2010
作者:  
秦晓飞
收藏  |  浏览/下载:112/0  |  提交时间:2015/09/02
Installation and cosmic ray test of the high voltage system of the BESIII drift chamber 期刊论文  OAI收割
CHINESE PHYSICS C, 2008, 卷号: 32, 期号: 12, 页码: 992-994
作者:  
Xu MH(徐美杭);  Chen C(陈昌);  Chen YB(陈元柏);  Wu Z(吴智);  Qin ZH(秦中华)
收藏  |  浏览/下载:17/0  |  提交时间:2016/06/29
Installation and cosmic ray test of the high voltage system of the BESIIIdrift chamber 期刊论文  OAI收割
中国物理C, 2008, 期号: 12, 页码: 992-994
作者:  
Xu MH(徐美杭);  Chen C(陈昌);  Chen YB(陈元柏);  Wu Z(吴智);  Qin ZH(秦中华)
收藏  |  浏览/下载:13/0  |  提交时间:2015/12/21
Study of the unusual performances of one type drift chamber feedthrough 期刊论文  OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 1998, 卷号: 22, 期号: 5, 页码: 398-405
作者:  
Wang YY(王运永);  Wang SM(王少敏);  Mao HS(毛慧顺);  Liu RG(刘荣光);  Li RB(李如柏)
收藏  |  浏览/下载:35/0  |  提交时间:2016/06/28