| 数字纳米云纹法的实验研究 |
| |
| 引用本文： | 刘战伟,谢惠民,方岱宁,戴福隆,郭海明,刘洪,高鸿钧,薛其坤.数字纳米云纹法的实验研究[J].光学技术,2004,30(1):9-12. |
| |
| 作者姓名： | 刘战伟 谢惠民 方岱宁 戴福隆 郭海明 刘洪 高鸿钧 薛其坤 |
| |
| 作者单位： | 清华大学,工程力学系,北京,100084;中科院真空物理实验室;中科院物理所 |
| |
| 基金项目： | 国家自然科学基金重点项目(10232030)，教育部回国人员科研启动基金的自然科学基金群体项目(101212020)资助 |
| |
| 摘 要： | 提出了一种新的测量物质纳米级变形的云纹方法———数字纳米云纹法,在测量过程中,借助于各种电镜,采用具有周期结构的晶体物质的晶格或一些过渡金属、贵金属材料规则的表面原子重构作为试件栅。该试件栅的节距可达到亚纳米的量级,使得该方法可以在纳观范围内测量物体的面内位移,应变。参考栅采用计算机绘制的正弦型数字栅。详细地论述了该数字栅的制作方法,数字纳米云纹条纹的形成机理,及位移、应变的测量方法,云纹条纹的相移方法和倍增方法。
|
| 关 键 词： | 数字纳米云纹 晶格 数字栅 重构面 |
| 文章编号： | 1002-1582(2004)01-0009-04 |
| 修稿时间： | 2003年6月25日 |
An experimental study on digital nano-moire method |
| |
| LIU Zhan-wei,XIE Hui-min,FANG Da-ining,DAI Fu-long,GUO Hai-ming,LIU Hong,GAO Hong-jun,XUE Qi-kun.An experimental study on digital nano-moire method[J].Optical Technique,2004,30(1):9-12. |
| |
| Authors: | LIU Zhan-wei XIE Hui-min FANG Da-ining DAI Fu-long GUO Hai-ming LIU Hong GAO Hong-jun XUE Qi-kun |
| |
| Institution: | LIU Zhan-wei~1,XIE Hui-min~1,FANG Da-ining~1,DAI Fu-long~1,GUO Hai-ming~2,LIU Hong~3,GAO Hong-jun~2,XUE Qi-kun~3 |
| |
| Abstract: | A new digital nano-moiré method for measuring nanometer-deformation is proposed. In measurement, periodic crystal lattices of crystal materials and atoms structure of the reconstructed surface of some FCC transition and noble metals are acted as specimen gratings, whose pitches are up to nanometer and sub-nanometer. Sine digital grating (computer generated grating) is acted as reference grating. The formation mechanism of digital nano-moire fringe and the design project of sine digital grating are discussed. In addition, the displacement and strain measurement principle, phase shifting technique and multiplication method of fringe are presented. |
| |
| Keywords: | digital nano-moiré crystal lattice digital grating reconstructed surface |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
