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A fresh study for dynamic behaviour of atomic force microscope cantilever by considering different immersion environments
Journal of Experimental Nanoscience ( IF 2.8 ) Pub Date : 2020-05-07 , DOI: 10.1080/17458080.2020.1754398
Ali Hossein Gholizadeh Pasha 1 , Ali Sadeghi 1
Affiliation  

Abstract

In this article, the dynamic behaviour of a rectangular atomic force microscope immersed in different liquids has been investigated. To account the rotatory inertia and shear deformation effects, Timoshenko beam theory has been applied. Here carbon tetrachloride (CCl4), methanol, acetone, water and air have been considered as the environments. Euler–Bernoulli and Timoshenko beam theories has been evaluated for a sample beam. Based on the final results, resonant frequency and amplitude of frequency response functions (FRF) of vertical and rotational displacements reduce by increasing the liquid viscosity also beam length and width. By increasing the beam thickness, the resonant frequency and amplitude of FRF of vertical and rotational displacements increase. For sample, experimental work has been done and compared with theoretical modelling. Results show good agreement.



中文翻译:

考虑不同浸没环境的原子力显微镜悬臂动力学行为的新研究

摘要

本文研究了矩形原子力显微镜在不同液体中的动态行为。为了解决旋转惯性和剪切变形的影响,已应用了季莫申科梁理论。这里的四氯化碳(CCl 4),甲醇,丙酮,水和空气已被视为环境。Euler–Bernoulli和Timoshenko光束理论已被评估用于样本光束。根据最终结果,垂直位移和旋转位移的共振频率和频率响应函数(FRF)的振幅会通过增加液体粘度以及射束长度和宽度而降低。通过增加光束厚度,垂直位移和旋转位移的FRF的共振频率和幅度都会增加。对于样品,已经完成了实验工作,并与理论建模进行了比较。结果显示出良好的一致性。

更新日期:2020-05-07
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