Panel positioning error and support mechanism for a 30-m THz radio telescope
文献类型：期刊论文
| 作者 | DeHua Yang2; Daniel Okoh1; GuoHua Zhou2; AiHua Li2; GuoPing Li2; JingQuan Cheng3 |
| 刊名 | Research in Astronomy and Astrophysics
 |
| 出版日期 | 2011 |
| 卷号 | 11期号:6页码:725–736 |
| ISSN号 | 1674-4527 |
| 英文摘要 | A 30-m TeraHertz (THz)radio telescope is proposed to operate at 200 &10m with an active primary surface.This paper presents sensitivity analysis of active surface panel positioning errors with optical performance in terms of the Strehl ratio.Based on Ruze's surface error theory and using a Monte Carlo simulation,the effects of six rigid panel positioning errors,such as piston,tip,tilt,radial,azimuthal and twist displacements,were directly derived.The optical performance of the telescope was then evaluated using the standard Strehl ratio.We graphically illustrated the various panel error effects by presenting simulations of complete ensembles of full reflector surface errors for the six different rigid panel positioning errors.Study of the panel error sensitivity analysis revealed that the piston error and tilt/tip errors are dominant while the other rigid errors are much less important.Furthermore,as indicated by the results,we conceived of an alternative Master-Slave Concept-based (MSC-based)active surface by implementating a special Series-Parallel Concept-based (SPC-based)hexapod as the active panel support mechanism.A new 30-m active reflector based on the two concepts was demonstrated to achieve correction for all the six rigid panel positioning errors in an economically feasible way. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/49022]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Centre for Basic Space Science,National Space Research and Development Agency,University of Nigeria 2.中国科学院国家天文台 3.National Radio Astronomy Observatory |
| 推荐引用方式 GB/T 7714 | DeHua Yang,Daniel Okoh,GuoHua Zhou,et al. Panel positioning error and support mechanism for a 30-m THz radio telescope[J]. Research in Astronomy and Astrophysics,2011,11(6):725–736. |
| APA | DeHua Yang,Daniel Okoh,GuoHua Zhou,AiHua Li,GuoPing Li,&JingQuan Cheng.(2011).Panel positioning error and support mechanism for a 30-m THz radio telescope.Research in Astronomy and Astrophysics,11(6),725–736. |
| MLA | DeHua Yang,et al."Panel positioning error and support mechanism for a 30-m THz radio telescope".Research in Astronomy and Astrophysics 11.6(2011):725–736. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。