Cross-coupling effect compensation of an AFM piezoelectric tube scanner for improved nanopositioning

M. S. Rana, H. R. Pota, I. R. Petersen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

The imaging performance of an atomic force microscope (AFM) at high scanning speeds is limited due to the cross-coupling properties of its scanning unit; i.e., the piezoelectric tube scanner (PTS). In order to increase the imaging speed of an AFM, a multi-input multi-output (MIMO) model predictive control (MPC) scheme is used for the PTS to reduce its cross-coupling effect. The design of this controller is based on an identified MIMO model of the AFM PTS. Also, a damping compensator is designed and included in the feedback loop with the plant to suppress the vibration of the PTS at the resonant frequency. Experimental results confirm the efficacy of the proposed controller.

Original languageEnglish
Title of host publication2014 American Control Conference, ACC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2456-2461
Number of pages6
ISBN (Print)9781479932726
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event2014 American Control Conference, ACC 2014 - Portland, OR, United States
Duration: 4 Jun 20146 Jun 2014

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Conference

Conference2014 American Control Conference, ACC 2014
Country/TerritoryUnited States
CityPortland, OR
Period4/06/146/06/14

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