Integral resonant control of a piezoelectric tube actuator for fast nanoscale positioning

Title: Integral resonant control of a piezoelectric tube actuator for fast nanoscale positioning
Creator: Bhikkaji, Bharath; Moheimani, S. O. Reza
Relation: IEEE/ASME Transactions on Mechatronics Vol. 13, Issue 5, p. 530-537
Publisher Link: http://dx.doi.org/10.1109/TMECH.2008.2001186
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Resource Type: journal article
Date: 2008
Description: There is a need, in the wide ranging scientific community, to perform fast scans using scanning tunneling microscopes (STMs) and atomic force microscopes (AFMs) with nanoscale precision. In this paper, a piezoelectric tube of the type typically used in STMs and AFMs is considered. The resonant mode that hampers the fast scanning is identified and damped using a feedback control technique known as integral resonant control (IRC). The piezoelectric tube is then actuated to perform fast and accurate scans. IRC is a new feedback control technique suitable for damping highly resonant structures. Here, the IRC control technique is suitably modified to damp the resonance of a piezoelectric tube and achieve fast tracking of a wideband set point.
Subject: control systems; piezoelectric transducers; vibration control
Identifier: http://hdl.handle.net/1959.13/39055
Identifier: uon:4407
Identifier: ISSN:1083-4435
Language: eng
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