Mass and Force Sensing of an Adsorbate on a Beam Resonator Sensor

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	Mass and Force Sensing of an Adsorbate on a Beam Resonator Sensor
	Zhang Y(张吟); Zhao YP(赵亚溥)
刊名	SENSORS
	2015-07
通讯作者邮箱	zhangyin@lnm.imech.ac.cn ; yzhao@imech.ac.cn
卷号	15 期号:7 页码:14871-14886
关键词	mechanical resonator sensor resonant frequency inverse problem beam
ISSN号	1424-8220
通讯作者	Zhang, Y (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China.
产权排序	[Zhang, Yin; Zhao, Ya-Pu] Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China
中文摘要	The mass sensing superiority of a micro-/nano-mechanical 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 a mechanical resonator sensor for two reasons: reducing extra experimental equipment and achieving better mass sensing by considering more factors.
分类号	二类/Q1
类目[WOS]	Chemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
研究领域[WOS]	Chemistry ; Electrochemistry ; Instruments & Instrumentation
关键词[WOS]	SURFACE STRESS ; NANOMECHANICAL RESONATORS ; REAL-TIME ; SPECTROMETRY ; MICROCANTILEVERS ; ADSORPTION ; PARTICLE ; NANOTUBE ; FREQUENCY ; STIFFNESS
收录类别	SCI ; EI
原文出处	http://dx.doi.org/10.3390/s150714871
语种	英语
WOS记录号	WOS:000361788200004
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/58413]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Zhang Y,Zhao YP. Mass and Force Sensing of an Adsorbate on a Beam Resonator Sensor[J]. SENSORS,2015,15(7):14871-14886.
APA	张吟,&赵亚溥.(2015).Mass and Force Sensing of an Adsorbate on a Beam Resonator Sensor.SENSORS,15(7),14871-14886.
MLA	张吟,et al."Mass and Force Sensing of an Adsorbate on a Beam Resonator Sensor".SENSORS 15.7(2015):14871-14886.