Transient eigenmodes analysis of single-impact cantilever dynamics combining Fourier and wavelet transforms

Francesco Banfi, Gabriele Ferrini, Valentina Pukhova

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

10 Citazioni (Scopus)

Abstract

The transient eigenmode structure of an interacting cantilever during a single impact on different surfaces evidences the excitation of higher flexural modes and low frequency oscillations. The frequency shift of the fundamental mode after the tip comes into contact with the sample surface allows calculating the tip–sample interaction stiffness and evidences the role of capillary condensation and surface wettability on the cantilever dynamics. Wavelet transforms are used to trace the origin of spectral features in the cantilever spectra and calculate force gradients of the tip–sample interaction.
Lingua originaleEnglish
pagine (da-a)N/A-N/A
RivistaNanotechnology
Volume26
DOI
Stato di pubblicazionePubblicato - 2015

Keywords

  • capillary condensation
  • capillary forces
  • force spectroscopy
  • multifrequency atomic force microscopy
  • nanomechanics
  • wavelet transform

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