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浏览/检索结果: 共8条，第1-8条 帮助

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Measurement error of tracer-based velocimetry in single-phase turbulent flows with inhomogeneous refractive indices 期刊论文  OAI收割
EXPERIMENTAL THERMAL AND FLUID SCIENCE, 2022, 卷号: 136, 页码: 12
作者:  Li, Huixin;  Fischer, Andreas;  Avila, Marc;  Xu, Duo;  Xu D(徐多)
  |  收藏  |  浏览/下载：35/0  |  提交时间：2022/08/02
Study of the Effect of Intake Layout on the Wavefront in a Beam Expanding System of a Telescope 期刊论文  OAI收割
Applied Sciences-Basel, 2020, 卷号: 10, 期号: 3, 页码: 10103643-1-14
作者:  Zhang, Qingpeng;  Tan, Yi;  Ren, Ge;  Tang, Tao
  |  收藏  |  浏览/下载：10/0  |  提交时间：2021/05/11
Design and Analysis of Hard X-Ray Microscope Employing Toroidal Mirrors Working at Grazing-Incidence 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE, 2020, 卷号: 34, 期号: 4
作者:  Cui, Ying;  Yan, Yadong;  Wu, Bingjing;  Li, Qi;  He, Junhua
  |  收藏  |  浏览/下载：25/0  |  提交时间：2020/05/29
High resolution SAR image simulation for buildings based on ray tracing algorithm 会议论文  OAI收割
Mippr 2011: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications
Wang, Guojun; Zhang, Fengli; Zi, Wan; Shao, Yun
收藏  |  浏览/下载：17/0  |  提交时间：2014/12/07
Influence of spatial temperature distribution on high accuracy interferometric metrology (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Yang H.;  Zhang J.;  Zhang J.;  Zhang J.;  Yan F.
收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25
We calculate the influence of temperature change on the refractive index of air  establish a model of air temperature distribution and analyze the effect of different temperature distribution on the high accuracy interferometric metrology. First  a revised Edlen formula is employed to acquire the relation between temperature and refractive index of air  followed by introducing the fixed temperature gradient distribution among the spatial grid within the optical cavity between the reference flat and the test flat of the Fizeau interferometer  accompanied by a temperature change random function within each grid. Finally  all the rays through the air layer with different incident angles are traced by Matlab program in order to obtain the final output position  angle and OPD for each ray. The influence of different temperature distribution and the length of the optical cavity in on the testing accuracy can be analyzed through the RMS value that results from repeatable rays tracing. As a result  the horizontal distribution (vertical to optical axis) has a large effect on the testing accuracy. Thus  to realize the high accuracy figure metrology  the horizontal distribution of temperature must be rigorously controlled as well as to shorten the length of the optical cavity to a large extent. The results from our simulation are of great significant for the accuracy analysis of interferometric testing and the research of manufacturing a interferometer. 2010 Copyright SPIE - The International Society for Optical Engineering.  
散景效果的真实感绘制 期刊论文  OAI收割
计算机辅助设计与图形学学报, 2010, 卷号: 22, 期号: 5, 页码: 746-752,761
吴佳泽; 郑昌文; 胡晓惠; 欧阳冠军
  |  收藏  |  浏览/下载：7/0  |  提交时间：2011/05/23
realistic rendering of bokeh effect based on optical aberrations 期刊论文  OAI收割
Visual Computer, 2010, 卷号: 26, 期号: 40337, 页码: 555-563
Wu Jiaze; Zheng Changwen; Hu Xiaohui; Wang Yang; Zhang Liqiang
  |  收藏  |  浏览/下载：18/0  |  提交时间：2010/08/26
Numerical research of heat generation in flashlamp-pumped Nd : glass disk amplifiers 期刊论文  OAI收割
opt. eng., 2005, 卷号: 44, 期号: 9, 页码: 94205
Zhu HT; 楼祺洪; He SB
收藏  |  浏览/下载：1684/123  |  提交时间：2009/09/18