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Wavelet cross-correlation and phase analysis of a free cantilever subjected to band excitation

Research output: Contribution to journalArticlepeer-review

Abstract

This work introduces the concept of time-frequency map of the phase difference between the cantilever response signal and the driving signal, calculated with a wavelet cross-correlation technique. The wavelet cross-correlation quantifies the common power and the relative phase between the response of the cantilever and the exciting driver, yielding "instantaneous" information on the driver-response phase delay as a function of frequency. These concepts are introduced through the calculation of the response of a free cantilever subjected to continuous and impulsive excitation over a frequency band. © 2012 Banfi and Ferrini.
Original languageEnglish
Pages (from-to)294-300
Number of pages7
JournalBeilstein Journal of Nanotechnology
Volume3
Issue number1
DOIs
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • General Physics and Astronomy
  • Electrical and Electronic Engineering

Keywords

  • Atomic force microscopy
  • band excitation
  • force spectroscopy
  • wavelet transforms

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