机构

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

采集方式

• OAI收割 [2]

内容类型

• 会议论文 [2]

发表日期

• 2012 [1]
• 2006 [1]

学科主题

• 天文技术与方法::自... [1]
• 天文望远镜::郭守敬... [1]
• 终端仪器::天文光谱... [1]

筛选

浏览/检索结果: 共2条，第1-2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 Design and realization of the backup field controllers for LAMOST Spectrographs 会议论文  OAI收割 Amsterdam, Netherlands, 2012-7-1 作者:  Zhongwen Hu;  Yongtian Zhu;  Jianing Wang;  Lei Wang;  Zhongyi Han 收藏  |  浏览/下载：44/0  |  提交时间：2014/01/09 Backup field controller  LAMOST  FPGA  voltage translation  Triple-speed Ethernet   Non-contact and on-line cone diameter measuring based on high speed linear CCD (EI CONFERENCE) 会议论文  OAI收割 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China Guohui Z.; Jianhua W. 收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25 The remarkable improvement of sensing and processing hardware performance makes the non-contact  on-line  high accuracy and high speed measuring possible by means of linear CCD. The goal of this pager is to describe the key questions on designing the cone diameter detecting system by linear CCD. This paper first describes the detecting scheme. In particular  the factors affecting accuracy  such as resolution  voltage difference between neighbor pixels  detecting rate and so on  are analyzed  and the quantitative estimation equations are provided. CCD takes on the photoelectric translation and measuring component double functions  so the waveform of CCD output signal and the affecting factors merit deep discussion. On the basis of discussion  several principles that can be used to improve the boundary recognition accuracy are presented.