Numerical analysis of vibration modes of a qPlus sensor with a long tip

We study the oscillatory behavior of qPlus sensors with a long tilted tip by means of finite element simulations. The vibration modes of a qPlus sensor with a long tip are quite different from those of a cantilever with a short tip. Flexural vibration of the tungsten tip will occur. The tip can no l...

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Autores principales: Chen, Kebei, Liu, Zhenghui, Xie, Yuchen, Zhang, Chunyu, Xu, Gengzhao, Song, Wentao, Xu, Ke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7849263/
https://www.ncbi.nlm.nih.gov/pubmed/33564605
http://dx.doi.org/10.3762/bjnano.12.7
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author Chen, Kebei
Liu, Zhenghui
Xie, Yuchen
Zhang, Chunyu
Xu, Gengzhao
Song, Wentao
Xu, Ke
author_facet Chen, Kebei
Liu, Zhenghui
Xie, Yuchen
Zhang, Chunyu
Xu, Gengzhao
Song, Wentao
Xu, Ke
author_sort Chen, Kebei
collection PubMed
description We study the oscillatory behavior of qPlus sensors with a long tilted tip by means of finite element simulations. The vibration modes of a qPlus sensor with a long tip are quite different from those of a cantilever with a short tip. Flexural vibration of the tungsten tip will occur. The tip can no longer be considered as a rigid body that moves with the prong of the tuning fork. Instead, it oscillates both horizontally and vertically. The vibration characteristics of qPlus sensors with different tip sizes were studied. An optimized tip size was derived from obtained values of tip amplitude, ratio between vertical and lateral amplitude components, output current, and quality factor. For high spatial resolution the optimal diameter was found to be 0.1 mm.
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spelling pubmed-78492632021-02-08 Numerical analysis of vibration modes of a qPlus sensor with a long tip Chen, Kebei Liu, Zhenghui Xie, Yuchen Zhang, Chunyu Xu, Gengzhao Song, Wentao Xu, Ke Beilstein J Nanotechnol Full Research Paper We study the oscillatory behavior of qPlus sensors with a long tilted tip by means of finite element simulations. The vibration modes of a qPlus sensor with a long tip are quite different from those of a cantilever with a short tip. Flexural vibration of the tungsten tip will occur. The tip can no longer be considered as a rigid body that moves with the prong of the tuning fork. Instead, it oscillates both horizontally and vertically. The vibration characteristics of qPlus sensors with different tip sizes were studied. An optimized tip size was derived from obtained values of tip amplitude, ratio between vertical and lateral amplitude components, output current, and quality factor. For high spatial resolution the optimal diameter was found to be 0.1 mm. Beilstein-Institut 2021-01-21 /pmc/articles/PMC7849263/ /pubmed/33564605 http://dx.doi.org/10.3762/bjnano.12.7 Text en Copyright © 2021, Chen et al. https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjnano/terms/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0). Please note that the reuse, redistribution and reproduction in particular requires that the author(s) and source are credited and that individual graphics may be subject to special legal provisions. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms/terms)
spellingShingle Full Research Paper
Chen, Kebei
Liu, Zhenghui
Xie, Yuchen
Zhang, Chunyu
Xu, Gengzhao
Song, Wentao
Xu, Ke
Numerical analysis of vibration modes of a qPlus sensor with a long tip
title Numerical analysis of vibration modes of a qPlus sensor with a long tip
title_full Numerical analysis of vibration modes of a qPlus sensor with a long tip
title_fullStr Numerical analysis of vibration modes of a qPlus sensor with a long tip
title_full_unstemmed Numerical analysis of vibration modes of a qPlus sensor with a long tip
title_short Numerical analysis of vibration modes of a qPlus sensor with a long tip
title_sort numerical analysis of vibration modes of a qplus sensor with a long tip
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7849263/
https://www.ncbi.nlm.nih.gov/pubmed/33564605
http://dx.doi.org/10.3762/bjnano.12.7
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