Control of hysteresis in a monolithic nanoactuator

Document Type

Article

Publication Date

1-1-2001

Abstract

This paper deals with the characterization and control of hysteresis in a piezoelectric nanoactuator. First, the notion of normalized ratio is introduced to quantitatively measure the strength of the hysteresis. This ratio is based on the harmonic contents of the actuator output signal and is approximately invariant under a range of input signal frequency and amplitude. Second, an analytic expression relating the harmonics to the plant parameters is derived. This expression is then applied to determine the plant parameters so that a nonlinear observer can be synthesized to cancel the hysteresis. Third, the observer-based compensated is tested in the experimental system. It is determined that the proposed compensation scheme produces significant attenuation of the hysteresis in the actuator.

Identifier

0034840866 (Scopus)

Publication Title

Proceedings of the American Control Conference

External Full Text Location

https://doi.org/10.1109/ACC.2001.946087

ISSN

07431619

First Page

2261

Last Page

2266

Volume

3

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