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浏览/检索结果: 共4条，第1-4条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Compact catadioptric optical system with long focal length large relative aperture and large field of view 会议论文 Beijing, PEOPLES R CHINA, 2020-11-30 作者:  Shen, Yang;  Wang, Hu;  Xue, Yaoke;  Xie, Yongjie;  Lin, Shangmin 收藏  |  浏览/下载：11/0  |  提交时间：2021/06/04 Optical system design  Coaxial four reflection  Catadioptric system  Aberration compensation   LOW-COST EPS FOR NANOSATELLITES CONSTELLATION OF BELT AND ROAD COUNTRIES 会议论文 FOURTH IAA CONFERENCE ON DYNAMICS AND CONTROL OF SPACE SYSTEMS 2018, PTS I-III, 2018-01-01 作者:  Kerrouche, K. Dj. E.;  Wang, L.;  Aoudeche, A. 收藏  |  浏览/下载：22/0  |  提交时间：2019/12/30 Design of a Miniature Axial Flux Flywheel Motor with PCB Winding for Nanosatellites 会议论文 2012 Wu J. F.; Ieee 收藏  |  浏览/下载：12/0  |  提交时间：2013/03/28 Design of a miniature axial flux flywheel motor with PCB winding for nanosatellites (EI CONFERENCE) 会议论文 2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China Wu J. 收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25 This paper presents the design and analysis of an axial flux permanent-magnet (AFPM) machine for nanosatellites application. It is a miniature axial flux surface mounted permanent magnet flywheel motor  using a printed circuit board (PCB) stator winding. The PCB stator has simplified the design and construction and avoids unnecessary space  since size reduction has become one of the most important aspects of flywheel motor design for nanosatellites. The performances of the machine are estimated by combination method of three-dimensional (3D) electromagnetic finite element analysis (FEA) and approximate theoretical analysis. The back EMF and electromagnetic torque are derived. A comparison between the analysis and experimental measurement results of the prototype machine is also presented. Both simulated and experimental results show that the proposed motor would be an acceptable solution for the nanosatellite applications with advantages such as simple structure and low-cost  as multi-layer circuit board production techniques have made the production of printed circuit coils cheaper and easier. 2012 IEEE.