The Fundamental Bandwidth Limit of Piezoelectrically Actuated Nanopositioners With Motion Amplification

Jayanth, G R (2017) The Fundamental Bandwidth Limit of Piezoelectrically Actuated Nanopositioners With Motion Amplification. In: JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME, 139 (11).

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Abstract

This paper proposes a simple reduced-order model for a general flexure-guided piezoelectrically actuated nanopositioner and employs it to derive the upper limit of achievable bandwidth for a specified travel range. It is shown that flexure-based motion amplification enables achieving higher bandwidth than that obtained when they are used for guiding motion alone. The optimal amplification and the corresponding maximum bandwidth are studied as functions of the mass carried by the positioner and the stiffness of the flexure. Simple analytical expressions are derived for the two in case of stiff flexures carrying small mass. The proposed reduced-order model is validated by means of finite element analysis.

Item Type:	Journal Article
Publication:	JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME
Additional Information:	Copy right for this article belongs to the ASME, TWO PARK AVE, NEW YORK, NY 10016-5990 USA
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	13 Oct 2017 04:53
Last Modified:	13 Oct 2017 04:53
URI:	http://eprints.iisc.ac.in/id/eprint/58003

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