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.
| Lingua originale | English |
|---|---|
| pagine (da-a) | 294-300 |
| Numero di pagine | 7 |
| Rivista | Beilstein Journal of Nanotechnology |
| Volume | 3 |
| DOI | |
| Stato di pubblicazione | Pubblicato - 2012 |
Keywords
- Atomic force microscopy
- band excitation
- force spectroscopy
- wavelet transforms