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Chinese Academy of Sciences Institutional Repositories Grid
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Evaluating methods for quality of laser shock processing 期刊论文  OAI收割
Optik, 2020, 卷号: 200, 页码: 1-10
作者:  
Wu JJ(吴嘉俊);  Zhao JB(赵吉宾);  Qiao HC(乔红超);  Zhang YN(张旖诺);  Hu XL(胡宪亮)
  |  收藏  |  浏览/下载:33/0  |  提交时间:2019/10/10
Analysis of a precise instrument for measuring reference level involute (EI CONFERENCE) 会议论文  OAI收割
Third International Symposium on Precision Mechanical Measurements, August 2, 2006 - August 6, 2006, Xinjiang, China
作者:  
Zhang Y.;  Wang X.;  Wang X.;  Wang X.;  Wang L.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
Reference level involute is used for evaluating other involutes  but it is very difficult to measure reference level involute exactly. Nowadays the available methods for measuring precise involute include single base disc mode  electronic generation mode  and CNC three-coordinate mode. But measurement accuracy of the modes above is not suitable for reference level involute. A precise instrument for measuring reference level involute  double base discs instrument  is introduced. It is consistent with generation principle of the involute entirely. Besides having the advantages of single basic disc instrument  the instrument can remove Abbe error caused by the stylus  and has no pressure deforming. The instrument's structure is described. The main sources of measurement errors are analyzed and methods for compensation are presented. Finally  uncertainty of the instrument is given  which meets reference level involute test specification.  
Imaging quality analysis of KBA x-ray microscope working at grazing incidence (EI CONFERENCE) 会议论文  OAI收割
Optical Design and Testing II, November 8, 2004 - November 11, 2004, Beijing, United states
作者:  
Zhao L.
收藏  |  浏览/下载:35/0  |  提交时间:2013/03/25
In the latest 20 years  x-ray imaging technology has developed fast in order to meet the need of x-ray photo-etching  spatial exploration technology  high-energy physics  procedure diagnosis of inertial confinement fusion (ICF) et al. Since refractive index of materials in the x-ray region is lower than 1  and x-ray is strongly absorbed by materials  it is very difficult to image objects in the x-ray region. Conventional imaging methods are hardly suitable to x-ray range. In general  grazing reflective imaging and coding aperture imaging methods have been adopted more and more. In this paper  according to user's requirement  we have designed a non-coaxial grazing KBA microscope. The microscope consists of two sets of perpendicular spherical mirrors  each set includes two parallel mirrors. Taking it as an example  we have compiled an optical computing program for the non-coaxial grazing imaging systems so as to analyze and evaluate aberrations of KBA microscope. Thus it can help us to get an optimal comprehension of KBA x-ray imaging system. In the same time  the analytical results provide reliable foundation for evaluating imaging quality of KBA microscope.