IMECH-IR  > 非线性力学国家重点实验室
The Inverse Problem of Sensing the Mass and Force induced by an Adsorbate on a Beam Nanomechanical Resonator
Liu Y; Zhang Y(张吟); Liu, Y (reprint author), Kunming Univ Sci & Technol, Fac Informat & Automat, Kunming 650051, Yunnan Province, Peoples R China.
Source PublicationPROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2015 (ICNAAM-2015)
2016
Conference NameInternational Conference on Numerical Analysis and Applied Mathematics (ICNAAM)
Conference DateSEP 23-29, 2015
Conference PlaceRhodes, GREECE
AbstractThe mass sensing superiority of a micro/nanomechanical resonator sensor over conventional mass spectrometry has been, or at least, is being firmly established. Because the sensing mechanism of a mechanical resonator sensor is the shifts of resonant frequencies, how to link the shifts of resonant frequencies with the material properties of an analyte formulates an inverse problem. Besides the analyte/adsorbate mass, many other factors such as position and axial force can also cause the shifts of resonant frequencies. The in-situ measurement of the adsorbate position and axial force is extremely difficult if not impossible, especially when an adsorbate is as small as a molecule or an atom. Extra instruments are also required. In this study, an inverse problem of using three resonant frequencies to determine the mass, position and axial force is formulated and solved. The accuracy of the inverse problem solving method is demonstrated and how the method can be used in the real application of a nanomechanical resonator is also discussed. Solving the inverse problem is helpful to the development and application of mechanical resonator sensor on two things: reducing extra experimental equipments and achieving better mass sensing by considering more factors.
KeywordResonator Resonance Frequency Galerkin Method Spectrometry
WOS IDWOS:000380803300470
DepartmentLNM纳/微系统力学与物理力学
ISBN978-0-7354-1392-4
URL查看原文
Indexed ByCPCI-S
Language英语
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Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60145
Collection非线性力学国家重点实验室
Corresponding AuthorLiu, Y (reprint author), Kunming Univ Sci & Technol, Fac Informat & Automat, Kunming 650051, Yunnan Province, Peoples R China.
Recommended Citation
GB/T 7714
Liu Y,Zhang Y,Liu, Y . The Inverse Problem of Sensing the Mass and Force induced by an Adsorbate on a Beam Nanomechanical Resonator[C],2016.
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