| 新型纳米级微位移致动器的设计 |
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| 引用本文： | 王昌,李强,李银祥,张一玲,胡明哲.新型纳米级微位移致动器的设计[J].材料开发与应用,2002,17(5):23-25,40. |
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| 作者姓名： | 王昌 李强 李银祥 张一玲 胡明哲 |
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| 作者单位： | 1. 武汉理工大学,武汉,430070
2. 清华大学,北京,100084 |
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| 基金项目： | “九五”国家 863高技术项目资助 |
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| 摘 要： | 磁致伸缩型微位移致动器通常采用多晶或孪晶结构材料作为驱动单元 ,由于晶界和孪晶界对畴壁的移动具有阻碍作用 ,其低场下的位移输出较小 ,调控精度受到较大影响。采用Tb Dy Fe单晶材料可以有效解决这一问题 ,本文介绍了采用这一单晶材料设计的新型高精度微位移致动器以及致动器的结构和数控电源
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| 关 键 词： | Tb-Dy-Fe单晶 磁致伸缩致动器 微位移 |
| 文章编号： | 1003-1545(2002)05-0023-03 |
Design of an Advanced Nano-microdisplacement Actuator |
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| Wang Chang ,Li Qiang ,Li Yinxiang ,Zhang Yiling ,Hu Mingzhe.Design of an Advanced Nano-microdisplacement Actuator[J].Development and Application of Materials,2002,17(5):23-25,40. |
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| Authors: | Wang Chang Li Qiang Li Yinxiang Zhang Yiling Hu Mingzhe |
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| Affiliation: | Wang Chang 1),Li Qiang 2),Li Yinxiang 1),Zhang Yiling 2),Hu Mingzhe 1) |
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| Abstract: | Tb-Dy-Fe twin crystal or polycrystal magnetostrictive materials are normally employed as driving unit in magnetostrictive actuator,yet the crystal boundary and twin crystal structure in the Tb-Dy-Fe materials hinder the movement of domain walls so that the displacement output under low magnetic field is rather small.This problem could be effectively solved by using Tb-Dy-Fe single crystal as driving unit.The design of a prototype actuator with use such kind of high performance RFe 2 single crystal is described covering the detail structure and the numerical current source. |
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| Keywords: | Tb-Dy-Fe Single crystal Magnetostrictive actuator Micro-displacement |
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