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DC Field | Value | Language |
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dc.contributor.author | Bueno, Atila Madureira | - |
dc.contributor.author | Balthazar, José Manoel | - |
dc.contributor.author | Castilho Piqueira, Jose Roberto | - |
dc.date.accessioned | 2013-09-30T18:50:22Z | - |
dc.date.accessioned | 2014-05-20T14:16:16Z | - |
dc.date.accessioned | 2016-10-25T17:39:25Z | - |
dc.date.available | 2013-09-30T18:50:22Z | - |
dc.date.available | 2014-05-20T14:16:16Z | - |
dc.date.available | 2016-10-25T17:39:25Z | - |
dc.date.issued | 2012-07-01 | - |
dc.identifier | http://dx.doi.org/10.1016/j.cnsns.2011.11.023 | - |
dc.identifier.citation | Communications In Nonlinear Science and Numerical Simulation. Amsterdam: Elsevier B.V., v. 17, n. 7, p. 3101-3111, 2012. | - |
dc.identifier.issn | 1007-5704 | - |
dc.identifier.uri | http://hdl.handle.net/11449/24895 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/24895 | - |
dc.description.abstract | Since the mid 1980s the Atomic Force Microscope is one the most powerful tools to perform surface investigation, and since 1995 Non-Contact AFM achieved true atomic resolution. The Frequency-Modulated Atomic Force Microscope (FM-AFM) operates in the dynamic mode, which means that the control system of the FM-AFM must force the micro-cantilever to oscillate with constant amplitude and frequency. However, tip-sample interaction forces cause modulations in the microcantilever motion. A Phase-Locked loop (PLL) is used to demodulate the tip-sample interaction forces from the microcantilever motion. The demodulated signal is used as the feedback signal to the control system, and to generate both topographic and dissipation images. As a consequence, a proper design of the PLL is vital to the FM-AFM performance. In this work, using bifurcation analysis, the lock-in range of the PLL is determined as a function of the frequency shift (Q) of the microcantilever and of the other design parameters, providing a technique to properly design the PLL in the FM-AFM system. (C) 2011 Elsevier B.V. All rights reserved. | en |
dc.format.extent | 3101-3111 | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.source | Web of Science | - |
dc.subject | Frequency-Modulated Atomic Force | en |
dc.subject | Microscopy | en |
dc.subject | Phase-Locked loops | en |
dc.subject | Bifurcation | en |
dc.subject | Nonlinear dynamics | en |
dc.subject | Mathematical model | en |
dc.title | Phase-Locked loops lock-in range in Frequency Modulated-Atomic Force Microscope nonlinear control system | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Universidade de São Paulo (USP) | - |
dc.description.affiliation | Univ Estadual Paulista, Dept Estat Matemat Aplicada & Comp, DEMAC, BR-13506900 Rio Claro, SP, Brazil | - |
dc.description.affiliation | Univ São Paulo, Escola Politecn, Dept Telecomunicacoaes & Controle, Ptc, Brazil | - |
dc.description.affiliationUnesp | Univ Estadual Paulista, Dept Estat Matemat Aplicada & Comp, DEMAC, BR-13506900 Rio Claro, SP, Brazil | - |
dc.identifier.doi | 10.1016/j.cnsns.2011.11.023 | - |
dc.identifier.wos | WOS:000301094200037 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Communications in Nonlinear Science and Numerical Simulation | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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