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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); Zhang, Y (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China.
Source PublicationSENSORS
2015-07
Volume15Issue:7Pages:14871-14886
ISSN1424-8220
AbstractThe 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.
KeywordMechanical Resonator Sensor Resonant Frequency Inverse Problem Beam
DOI10.3390/s150714871
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000361788200004
WOS KeywordSURFACE STRESS ; NANOMECHANICAL RESONATORS ; REAL-TIME ; SPECTROMETRY ; MICROCANTILEVERS ; ADSORPTION ; PARTICLE ; NANOTUBE ; FREQUENCY ; STIFFNESS
WOS Research AreaChemistry ; Electrochemistry ; Instruments & Instrumentation
WOS SubjectChemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
Funding OrganizationThe research has been supported by the National Natural Science Foundation of China (NSFC No. 11372321).
DepartmentLNM纳/微系统力学与物理力学
Classification二类/Q1
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58413
Collection非线性力学国家重点实验室
Corresponding AuthorZhang, Y (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Zhang Y,Zhao YP,Zhang, Y . 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,&Zhang, Y .(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.
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