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浏览/检索结果: 共60条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 大气光学湍流模式研究:C_n~2廓线模式 期刊论文  OAI收割 物理学报, 2023, 卷号: 72 作者:  吴晓庆;  杨期科;  黄宏华;  青春;  胡晓丹   |  收藏  |  浏览/下载：16/0  |  提交时间：2023/11/10 atmospheric optical turbulence  modified CLEAR I night model  C_n~2 profile model of 5 field test site  suspicion of the H-V(5/7)model  大气光学湍流  修正的CLEAR I夜晚模式  5个实验点C_n~2廓线公式  H-V(5/7)模式的存疑   Modeling the modulation transfer function measurement system of large aperture space cameras 会议论文  OAI收割 Shanghai, China, 2021-10-28 作者:  Liu, Shangkuo;  Wang, Zhengfeng;  Cao, Kun;  Wang, Tao;  Zhou, Yan   |  收藏  |  浏览/下载：60/0  |  提交时间：2022/03/18 Optical Test  Modulation Transfer Function  Space Camera  Large Aperture   Design of the Active Cooling Focal Plane Component for the Space Astronomy Telescope 会议论文  OAI收割 Chengdu, China, 2021-06-14 作者:  Liangjie, Feng;  Chenjie, Wang;  Gangyi, Zou   |  收藏  |  浏览/下载：30/0  |  提交时间：2022/03/10 space astronomy camera  active cooling focal plane  coplanar splicing  thermo-optical test   Research on measurement optical axis eccentricity and fitting method of aspheric mirror 会议论文  OAI收割 Beijing, China, 2019-10-26 作者:  Fu, Xi Hong;  Li, Shuo;  Xue, Li;  Kang, Shi-Fa;  Zheng, Xiang-Ke   |  收藏  |  浏览/下载：24/0  |  提交时间：2020/04/23 Aspheric mirror  Optical axis  CMM  Measurement coordinate system  Eccentricity test   Micro-vibration test and imaging analysis during space camera thermal-optical test 会议论文  OAI收割 Beijing, China, 2019-07-07 作者:  She, Wenji;  Cui, Kai;  Gao, Xiong;  Li, Shuxiu;  Wang, Huan   |  收藏  |  浏览/下载：25/0  |  提交时间：2020/03/04 Space Camera  Micro-vibration  MTF  Accelerometer  Thermal-optical Test   Indirect validation method of thermal design for exposed opto-electro-mechanical instrument on satellite 期刊论文  OAI收割 Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2018, 卷号: 26, 期号: 7, 页码: 1741-1748 作者:  Liu, Shao-Ran;  Liu, Bai-Lin;  Luo, Zhi-Tao;  Yang, Qing-Bo   |  收藏  |  浏览/下载：23/0  |  提交时间：2019/09/17 Optical communication  Communication satellites  Instrument testing  Orbits  Satellites  Test facilities   Distributed Fiber Optic Monitoring and Stability Analysis of a Model Slope under Surcharge Loading 期刊论文  OAI收割 Journal of Mountain Science, 2014, 卷号: 11, 期号: 4, 页码: 979-989 ZHU Hong-Hu; SHI Bin; ZHANG Jie; YAN Jun-Fan; ZHANG Cheng-Cheng 收藏  |  浏览/下载：26/0  |  提交时间：2014/07/08 Slope stability  Geotechnical monitoring  Fiber optic sensor  Distributed strain sensing  Brillouin optical time-domain analysis (BOTDA)  Model test   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：43/0  |  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.   Quantitative measurement of large-aperture aspheric surfaces by off-axis Ronchi test 期刊论文  OAI收割 OPTICS AND LASERS IN ENGINEERING, 2012, 卷号: 50, 期号: 2, 页码: 165-169 作者:  Guo, Chunfeng;  Su, Xianyu;  Chen, Wenjing;  Lei, Baiping;  Wu, Fan 收藏  |  浏览/下载：26/0  |  提交时间：2015/07/10 Optical testing  Aspheric mirror  Ronchi test  3D surface measurement  Fringe analysis   A new algorithm for solving the best-fit sphere of optical aspherical surface (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Advances in Materials and Manufacturing, ICAMMP 2011, December 16, 2011 - December 18, 2011, Guilin, China 作者:  Lin J.;  Lu M. 收藏  |  浏览/下载：40/0  |  提交时间：2013/03/25 To solve the best-fit sphere (BFS) accurately is one of the technological keys for the generating and testing of optical aspherical surfaces. This paper presents a new algorithm for solving the BFS of aspherical surfaces to suppress some deficiencies in the existing BFS algorithms. In the proposed approach  it is not only suitable for the conic surface  a BFS is constructed  but also for higher order aspheres. The obtained asphericity and material removal function is more suitable for the machining and test. (2012) Trans Tech Publications  which passes through both sides of endpoints in the section o -?xy of the aspherical surfaces  Switzerland.  the center of the BFS is shifted along the x-axis  and its radius of curvature is automatically computed. The variable step size method is proposed to speed up the convergence of the iteration. Through numerically solving the BFS of conic and cubic surface  the advantages of the proposed approach are verified. The results show that the proposed approach is of rapid convergence  and high accuracy