| 原子力显微镜轻敲模式下由液桥引起的能量耗散 |
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| 引用本文： | 陈少勇,魏征.原子力显微镜轻敲模式下由液桥引起的能量耗散[J].力学与实践,2015,37(5):585-589. |
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| 作者姓名： | 陈少勇 魏征 |
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| 作者单位： | 北京化工大学机电工程学院, 北京 100029 |
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| 基金项目： | 国家自然科学基金(11072024)和国家留学基金(201208110350)资助项目. |
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| 摘 要： | 轻敲模式下的相位像反映的是探针样品间接触分离过程的能量耗散, 大气环境下的能量耗散主要由液桥引起. 因此为理解成像机理, 本文分析轻敲模式下液桥的形成和破碎的动力学过程, 得到此种模式下的耗散能.
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| 关 键 词： | 轻敲模式 液桥 耗散能 挤出模型 毛细力 |
| 收稿时间： | 2014-10-20 |
| 修稿时间： | 2015-02-01 |
THE DISSIPATION ENERGY IN TAPPING MODE OF ATOMIC FORCE MICROSCOPE DUE TO LIQUID BRIDGE |
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| CHEN Shaoyong,WEI Zheng.THE DISSIPATION ENERGY IN TAPPING MODE OF ATOMIC FORCE MICROSCOPE DUE TO LIQUID BRIDGE[J].Mechanics and Engineering,2015,37(5):585-589. |
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| Authors: | CHEN Shaoyong WEI Zheng |
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| Institution: | College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | The phase image in tapping mode of atomic force microscope indicates that the process of interaction and separation between the tip and the samples dissipates energy, which is primarily due to the liquid bridge in ambient air. This paper studies the dynamic process of the formation and rupture of liquid bridge in tapping mode of atomic force microscope in order to reveal the AFM working mechanism, and finally the dissipation energy in tapping mode of AFM is determined. |
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| Keywords: | tapping mode|liquid bridge|dissipation energy|squeeze mode|capillary force |
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