Dynamical integrity of a noncontact AFM model with external feedback control is investigated to evaluate the effects of such local control procedure on the erosion of the basins of attraction of the system bounded solutions. The outcomes highlight that around the resonance frequencies the system undergoes a worsening of its practical stability, with respect to variations of the forcing amplitude and the tip-sample distance, as well, thus underlining the importance of a global analysis to assess the system actual safety in operating conditions.
Global dynamics effects of a feedback control of noncontact atomic force microscopy
Valeria Settimi;Giuseppe Rega
2015-01-01
Abstract
Dynamical integrity of a noncontact AFM model with external feedback control is investigated to evaluate the effects of such local control procedure on the erosion of the basins of attraction of the system bounded solutions. The outcomes highlight that around the resonance frequencies the system undergoes a worsening of its practical stability, with respect to variations of the forcing amplitude and the tip-sample distance, as well, thus underlining the importance of a global analysis to assess the system actual safety in operating conditions.File in questo prodotto:
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