Detecting Both the Mass and Position of an Accreted Particle by a Micro/Nano-Mechanical Resonator Sensor

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	Detecting Both the Mass and Position of an Accreted Particle by a Micro/Nano-Mechanical Resonator Sensor
	Zhang Y(张吟); Liu Y; Zhang Y(张吟)
发表期刊	Sensors (Basel)
	2014-09
卷号	14 期号:9 页码:16296-16310
ISSN	1424-8220
摘要	In the application of a micro-/nano-mechanical resonator, the position of an accreted particle and the resonant frequencies are measured by two different physical systems. Detecting the particle position sometimes can be extremely difficult or even impossible, especially when the particle is as small as an atom or a molecule. Using the resonant frequencies to determine the mass and position of an accreted particle formulates an inverse problem. The Dirac delta function and Galerkin method are used to model and formulate an eigenvalue problem of a beam with an accreted particle. An approximate method is proposed by ignoring the off-diagonal elements of the eigenvalue matrix. Based on the approximate method, the mass and position of an accreted particle can be decoupled and uniquely determined by measuring at most three resonant frequencies. The approximate method is demonstrated to be very accurate when the particle mass is small, which is the application scenario for much of the mass sensing of micro-/nano-mechanical resonators. By solving the inverse problem, the position measurement becomes unnecessary, which is of some help to the mass sensing application of a micro-/nano-mechanical resonator by reducing two measurement systems to one. How to apply the method to the general scenario of multiple accreted particles is also discussed.
关键词	Inverse Problem Mass Sensing Resonator Sensor Resonant Frequency Galerkin Method
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000343106600040
课题组名称	LNM纳/微系统力学与物理力学
论文分区	二类/Q1
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49025
专题	非线性力学国家重点实验室
通讯作者	Zhang Y(张吟)
推荐引用方式 GB/T 7714	Zhang Y,Liu Y,Zhang Y. Detecting Both the Mass and Position of an Accreted Particle by a Micro/Nano-Mechanical Resonator Sensor[J]. Sensors (Basel),2014,14,9,:16296-16310.
APA	Zhang Y,Liu Y,&张吟.(2014).Detecting Both the Mass and Position of an Accreted Particle by a Micro/Nano-Mechanical Resonator Sensor.Sensors (Basel),14(9),16296-16310.
MLA	Zhang Y,et al."Detecting Both the Mass and Position of an Accreted Particle by a Micro/Nano-Mechanical Resonator Sensor".Sensors (Basel) 14.9(2014):16296-16310.

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