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Laser-assisted Four Point Bending of Aluminium Sheet 期刊论文  OAI收割
LASERS IN ENGINEERING, 2018, 卷号: 41, 页码: 205-217
作者:  Peng Q(彭青)
  |  收藏  |  浏览/下载：29/0  |  提交时间：2018/10/19
Design and test of pointing mirror assembly for spaceborne remote sensing camera (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China
作者:  Chen W.
收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25
In order to ensure the surface figure of the pointing mirror (460mm long  290mm wide) in spaceborne remote sensing camera  Silicon Carbide was selected as the mirror material. The form of composite triangular and rectangular and the combination of open and closed back was explored in the lightweight design. A new kinematic mount and flexible structure in axis is used to hold the mirror around the lateral surface. The structure can minimize distortions induced by coefficient of thermal expansion mismatch among the materials. This eliminates the bending of the integral mount under the weight of the mirror. Optical performance of the mirror was analyzed under gravity load and temperature load using finite element method. Predicted surface figure error based on the removal of bias  tilt and power was calculated using an in-house Matlab script for mirrors. The pointing mirror assembly was tested using open loop servo control. And the surface figure was checked using interferometer. Surface figure accuracy is better than 1/30 ( 632.8nm  rms). The results show that the kinematic mount induces minimal figure error on the optical surface. 2011 IEEE.  
Signature splitting of the pi h(11/2) band and high-spin structures in Tb-155 期刊论文  OAI收割
CHINESE PHYSICS C, 2010, 卷号: 34, 页码: 958-963
作者:  Li Tao;  Chen Bao-Ren;  Liu Shu-Xin
  |  收藏  |  浏览/下载：36/0  |  提交时间：2018/07/16