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Effects of barium substitution on the optical and electrical properties of PLZT transparent electro-optical ceramics 期刊论文  OAI收割
CERAMICS INTERNATIONAL, 2019, 卷号: 45, 期号: 14, 页码: 17890
作者:  
Xu, Zhewei;  Zeng, Xia;  Cao, Zhaodong;  Ling, Liang;  Qiu, Pingsun
  |  收藏  |  浏览/下载:61/0  |  提交时间:2019/12/26
The angular velocity estimation principal of -- filter based on high sampling rate (EI CONFERENCE) 会议论文  OAI收割
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
作者:  
Zhang Y.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
In order to get angular velocity of stabilization servo mechanism from angular position sensors  -- filter and its angular velocity transfer function were predigested. Combing with optimum parameters  -- filter based on high sampling rate was established  the effect of and sample rate on filter nature frequency were evaluated. According to the requirements of stabilization platform  the principle of steady and transient tracking filter differential were proved. With the hypothesis of constant acceleration  the frequency characteristics of angular velocity transfer function were analyzed  three-dimensional Kalman filter was simplified  and the filter parameters were designed. The results show that when the spectrum of input signal was lower than 6rad/s  parameters was 0.02  and sampling period were 0.08ms and 0.1ms respectively  the filter can realize differential exactly  when the spectrum was 9rad/s  the precision was no less than 1.1%  the phase leading of angular position was no less than 70  the natural frequency should be higher than the cut-off frequency of stabilization platform was two or three times. In the engineering of electro-optical stabilization servo mechanism  -- filter has properties of tracking differential  and reached the requirement of platform angular velocity estimation. Also it is one of the effective methods to get angular velocity from angular position sensors. 2011 IEEE.  
Preparation and characterization of Al and Mn doped ZnO (ZnO : (Al, Mn)) transparent conducting oxide films 期刊论文  OAI收割
Journal of Solid State Chemistry, 2004, 卷号: 177, 期号: 4-5, 页码: 1480-1487
H. T. Cao; Z. L. Pei; J. Gong; C. Sun; R. F. Huang; L. S. Wen
收藏  |  浏览/下载:18/0  |  提交时间:2012/04/14
Transparent conductive Al and Mn doped ZnO thin films prepared by DC reactive magnetron sputtering 期刊论文  OAI收割
Surface & Coatings Technology, 2004, 卷号: 184, 期号: 1, 页码: 84-92
H. T. Cao; Z. L. Pei; J. Gong; C. Sun; R. F. Huang; L. S. Wen
收藏  |  浏览/下载:32/0  |  提交时间:2012/04/14