State feedback control for adjusting the dynamic behavior of a piezoactuated bimorph atomic force microscopy probe

Orun B., Necipoglu S., Basdogan C., Guvenc L.

REVIEW OF SCIENTIFIC INSTRUMENTS, vol.80, no.6, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 80 Issue: 6
  • Publication Date: 2009
  • Doi Number: 10.1063/1.3142484
  • Journal Name: REVIEW OF SCIENTIFIC INSTRUMENTS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Istanbul Technical University Affiliated: Yes

Abstract

We adjust the transient dynamics of a piezoactuated bimorph atomic force microscopy (AFM) probe using a state feedback controller. This approach enables us to adjust the quality factor and the resonance frequency of the probe simultaneously. First, we first investigate the effect of feedback gains on dynamic response of the probe and then show that the time constant of the probe can be reduced by reducing its quality factor and/or increasing its resonance frequency to reduce the scan error in tapping mode AFM.