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浏览/检索结果: 共27条，第1-10条 帮助

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Research on High Precision Permanent Magnet Servo Control System of Airborne Stable Platform 会议论文  OAI收割
Chongqing, China, 2020-06-12
作者:  Yu, Cao;  Xiuqin, Su;  Haitao, Wang;  Meilin, Xie;  Feng, Jing
  |  收藏  |  浏览/下载：70/0  |  提交时间：2020/10/27
Accuracy and stability evaluation of the Rb-85 atom gravimeter WAG-H5-1 at the 2017 International Comparison of Absolute Gravimeters 期刊论文  OAI收割
METROLOGIA, 2019, 卷号: 56, 期号: 4, 页码: 7
作者:  Huang, Pan-Wei;  Tang, Biao;  Chen, Xi;  Zhong, Jia-Qi;  Xiong, Zong-Yuan
  |  收藏  |  浏览/下载：76/0  |  提交时间：2019/10/14
Accuracy and stability evaluation of the 85Rb atom gravimeter WAG-H5-1 at the 2017 International Comparison of Absolute Gravimeters 期刊论文  OAI收割
Metrologia, 2019, 卷号: 56, 期号: 4
作者:  Huang,Pan-Wei;  Tang,Biao;  Chen,Xi;  Zhong,Jia-Qi;  Xiong,Zong-Yuan
  |  收藏  |  浏览/下载：77/0  |  提交时间：2019/10/14
Extended kalman predictive filter and its application in theodolite system 会议论文  OAI收割
Beijing, China, 2019-07-12
作者:  Changming, Lu;  Xin, Gao;  Zhiguo, Li;  Meilin, Xie;  Yu, Cao
  |  收藏  |  浏览/下载：59/0  |  提交时间：2019/09/20
A Frequency Multiplication Method Based on Extracting Harmonic From Narrow Pulse 期刊论文  OAI收割
IEEE ACCESS, 2019, 卷号: 7, 页码: 95341-95350
作者:  Zhou, Mei;  Tang, Sheng;  Wang, Wenli;  Ke, Jing;  Deng, Zhouhu
  |  收藏  |  浏览/下载：26/0  |  提交时间：2021/11/29
A new family of fourth-order locally one-dimensional schemes for the three-dimensional wave equation 期刊论文  OAI收割
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 2017, 卷号: 311, 页码: 130-147
作者:  Zhang, Wensheng;  Jiang, Jiangjun
  |  收藏  |  浏览/下载：21/0  |  提交时间：2018/07/30
The Development of high precision carbon fiber composite mirror 会议论文  OAI收割
8th international symposium on advanced optical manufacturing and testing technologies - advanced optical manufacturing technologies, suzhou, peoples r china, 2016-04-26
作者:  Xu Liang;  Ding Jiao-teng;  Wang Yong-jie;  Xie Yong-jie;  Ma Zhen
收藏  |  浏览/下载：35/0  |  提交时间：2016/12/16
Research on Accuracy and Stability of Inversing Vegetation Chlorophyll Content by Spectral Index Method 期刊论文  OAI收割
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 卷号: 35, 期号: 4, 页码: 543-554
作者:  Jiang Hai-ling;  Yang Hang;  Chen Xiao-ping;  Wang Shu-dong;  Li Xue-ke
收藏  |  浏览/下载：20/0  |  提交时间：2016/04/20
Research on Accuracy and Stability of Inversing Vegetation Chlorophyll Content by Spectral Index Method SCI/SSCI论文  OAI收割
2015
作者:  Jiang H. L.;  Yang, H.;  Chen, X. P.;  Wang, S. D.;  Li, X. K.
收藏  |  浏览/下载：33/0  |  提交时间：2015/12/09
Structural design of large aperture rectangular mirror for space telescope (EI CONFERENCE) 会议论文  OAI收割
2nd International Conference on Civil Engineering and Transportation, ICCET 2012, October 27, 2012 - October 28, 2012, Guilin, China
作者:  Li Z.;  Li Z.
收藏  |  浏览/下载：49/0  |  提交时间：2013/03/25
Structural design of large aperture mirror is one of the key technologies for space telescope development. To meet the requirements of high stiffness  strength and thermal dimensional stability  some factors such as support scheme  materials selection  lightweight design and flexible support design were taken into account. The three supports location of the mirror was determined according to the modal analytical solution. By adjusting the parameters of flexure hinge  influences of gravity  assembly stress and thermal stress on the mirror were reduced obviously. Finite element analysis (FEA) results indicate that the surface accuracy reach to rms10.2nm and 10.8nm under the gravity along optical axis direction and 5C uniform temperature rise respectively  the fundamental frequency of the mirror component is 268Hz. Dynamics test shows that the first order natural frequency is 256Hz  which shows an error less than 5% compared to FEA results. (2013) Trans Tech Publications  Switzerland.