机构

• 长春光学精密机械与物... [1]
• 南京天文光学技术研究... [1]
• 紫金山天文台 [1]

采集方式

• OAI收割 [3]

内容类型

• 会议论文 [2]
• 期刊论文 [1]

发表日期

• 2016 [1]
• 2012 [1]
• 2010 [1]

学科主题

• 天文技术与方法::主... [1]

筛选

浏览/检索结果: 共3条，第1-3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 Hybrid optimization methodology of variable densities mesh model for the axial supporting design of wide-field survey telescope 期刊论文  OAI收割 OPTICAL ENGINEERING, 2016, 卷号: 55, 期号: 3 作者:  Wang, Hairen 收藏  |  浏览/下载：25/0  |  提交时间：2016/09/27 hybrid optimization methodology  variable densities mesh model  axial support optimization  primary mirror  zero-order optimization method  first-order optimization method   Performance Comparison between Two Active Support Schemes for 1-m Primary Mirror 会议论文  OAI收割 Amsterdam, Netherlands, 2012-7-1 作者:  Guomin Wang;  Bozhong Gu;  Dongsheng Niu 收藏  |  浏览/下载：39/0  |  提交时间：2014/01/11 support scheme  active optics  correction ability  axial support   Research of active supporting technology based on 400mm thin mirror (EI CONFERENCE) 会议论文  OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China 作者:  Liu X.-Y.;  Wang J.-L.;  Wang J.-L.;  Liu X.-Y. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 Using a spherical mirror of 400mm diameter and 12mm thickness  active supporting technology of thin mirror is researched. The axial support of the mirror is composed of 12 active supports and 3 fixed supports. The force actuator  which is composed of displacement actuator and force sensor  is installed in the active support. The mirror surface is tested by Zygo interferometer. For calibration  each actuator exerts unit force alone  and the surface variation is tested and taken as the response function of the actuator. The response functions of all actuators compose the stiffness matrix. Then the stiffness matrix is used by damped least square method to determine the correction force of each active support. In order to analyze the correction capability of the active supports  14 Zernike modes of the mirror surface are generated and tested respectively  and 7 modes are selected for correction. Initially  the RMS error of mirror surface is 1.16 I( =0.6328nm)when all actuators exert the same force. After 5 iterations  the RMS error of mirror surface is reduced to 0.13  close to the original surface quality. 2010 Copyright SPIE - The International Society for Optical Engineering.