机构

• 长春光学精密机械与物... [1]
• 福建物质结构研究所 [1]
• 中国科学院大学 [1]
• 沈阳自动化研究所 [1]

采集方式

• OAI收割 [3]
• iSwitch采集 [1]

内容类型

• 会议论文 [2]
• 期刊论文 [2]

发表日期

• 2016 [1]
• 2010 [2]
• 2001 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择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作者升序作者降序 Model-based target decomposition with the pi/4 mode compact polarimetry data 期刊论文  iSwitch采集 Science china-information sciences, 2016, 卷号: 59, 期号: 6, 页码: 10 作者:  Guo, Shenglong;  Li, Yang;  Hong, Wen;  Wang, Jianfeng;  Guo, Xiaoyang 收藏  |  浏览/下载：42/0  |  提交时间：2019/05/09 Pi/4 mode compact polarimetry  Mode-based target decomposition  Stokes vector  Rvog model  Radar polarimetry   High-power LD end-pumped intra-cavity Nd:YAlO3/KTiOAsO4 optical parametric oscillator emitting at 1562 nm 期刊论文  OAI收割 Laser Physics Letters, 2010, 卷号: 7, 期号: 10, 页码: 703-706 H. Y. Zhu, Y. M. Duan, G. Zhang, C. H. Huang, Y. Wei, W. D. Chen, H. Y. Wang and G. Qiu 收藏  |  浏览/下载：23/0  |  提交时间：2012/11/02 OPO  eye-safe laser  Nd:YAlO3  KTiOAsO4  nd-yap laser  kta opo driven  nd-yvo4 laser  compact  frequency  ktioaso4  output  mode   Application of precision harmonic gear drive in focusing mechanism of space camera (EI CONFERENCE) 会议论文  OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials in Manufacturing and Testing, April 26, 2010 - April 29, 2010, Dalian, China 作者:  Zhang X.;  Zhang X.;  Zhang X. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 A kind of precision harmonic gear drive in the focusing mechanism of space camera is studied  which adopt external meshing complex wave transmission mode. Wave generator is combined with an elliptic cam and a flexible bearing around it. Flexspline is a structure of single wave with the same teeth. The output shaft is supported by a single cross-roller bearing. Ball screws connected the output shaft translate the rotational motion to the linear motion  and drive the focusing mirror repeated moving along the linear guide. The output rigid wheel is connected with absolute encoder to detect displacement of focusing movement. It has the characteristics of big transmission ratio  high precision  compact structure  high efficiency and smooth running etc. According to the practical application of this harmonic gear drive in the space camera  the location relationship between the displacement of focusing structure and the focal plane movement is derived  and the system error is analyzed  its accuracy is tested with the open-loop control method. Experimental results show that transmission ratio of the instrument is 1:70  repeated positional accuracy is 2m  which meet the requirements for use. 2010 SPIE.   Periodic messages and function blocks scheduling in FF system 会议论文  OAI收割 International Conference on Info-Tech and Info-Net (ICII 2001), BEIJING, China, October 29 - November 1, 2001 作者:  Zhou Y(周悦);  Yuan MZ(苑明哲);  Wang TR(王天然);  Yu HB(于海斌) 收藏  |  浏览/下载：21/0  |  提交时间：2012/06/06 precedence constraints  time constraints  compact mode  job slack time monotonic (JSTM)