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

• 2010 [1]
• 2009 [1]

学科主题

• 天文技术与方法 [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 Autocollimation form dual-frequency laser diffraction grating interferometer design and analysis (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Wang C.-G. 收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25 Propose a new measurement system of autocollimation form laser grating heterodyne interferometer. Take grating diffraction and polarization optics as theoretical foundation  second  furthermore  combined with electronics knowledge to analyze the system. First  make use of autocollimation diffraction of grating  measurement information obtained by dual-frequency laser belongs to ac signal  the interferometer measurement system take grating pitch as measuring datum  the structure is simple  possess great gain and high signal-noise ratio  therefore  stable  completely overcome the disadvantages of DC level drift caused by light intensity variation of single-frequency laser  system can achieve nanometer resolution. 2010 IEEE.  reduce the impact of environmental factors  easy to install and debug  measurement error is small   Design and Test of a Micro-displacement Actuator Based on Giant Magnetostrictive Material 会议论文  OAI收割 Weihai, China, 2009-7-8 作者:  Kunxin Chen;  Dehua Yang;  Bintang Yang;  Liang Shao 收藏  |  浏览/下载：21/0  |  提交时间：2014/01/02 Micro-displacement actuator  giant magnetostrictive material  displacement/stroke pantograph mechanism  astronomical telescope  nanometer resolution.