title: Wavelet cross-correlation and phase analysis of a free cantilever subjected to band excitation.
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.
authors.affiliation: Interdisciplinary Laboratories for Advanced Materials Physics (i-LAMP) and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro Cuore, I-25121 Brescia.
authors.forename: Francesco
authors.initials: F
authors.lastname: Banfi
authors.forename: Gabriele
authors.initials: G
authors.lastname: Ferrini