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https://hdl.handle.net/2440/80114
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Type: | Journal article |
Title: | A digital charge amplifier for hysteresis elimination in piezoelectric actuators |
Author: | Bazghaleh, M. Grainger, S. Mohammadzaheri, M. Cazzolato, B. Lu, T. |
Citation: | Smart Materials and Structures, 2013; 22(7):1-9 |
Publisher: | IOP Publishing Ltd |
Issue Date: | 2013 |
ISSN: | 0964-1726 1361-665X |
Statement of Responsibility: | M Bazghaleh, S Grainger, M Mohammadzaheri, B Cazzolato and T-F Lu |
Abstract: | Piezoelectric actuators are commonly used for nanopositioning due to their high resolution, low power consumption and wide operating frequency, but they suffer hysteresis, which affects linearity. In this paper, a novel digital charge amplifier is presented. Results show that hysteresis is reduced by 91% compared with a voltage amplifier, but over long operational periods the digital charge amplifier approach suffers displacement drift. A non-linear ARX model with long-term accuracy is used with a data fusion algorithm to remove the drift. Experimental results are presented. |
Rights: | © 2013 IOP Publishing Ltd |
DOI: | 10.1088/0964-1726/22/7/075016 |
Published version: | http://dx.doi.org/10.1088/0964-1726/22/7/075016 |
Appears in Collections: | Aurora harvest Mechanical Engineering publications |
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