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Bidirectional Drive with Inhibited Hysteresis for Piezoelectric Actuators

Piezoelectric actuators with a flexible displacement amplification structure are widely used in the fields of precision driving and positioning. The displacement curve of conventional piezoelectric actuators is asymmetrical and non-linear, which leads to large non-linear errors and reduced positioni...

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Detalles Bibliográficos
Autores principales: Huang, Weiqing, Lian, Junkai, An, Dawei, Chen, Mingyang, Lei, Yinfeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8879597/
https://www.ncbi.nlm.nih.gov/pubmed/35214447
http://dx.doi.org/10.3390/s22041546
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author Huang, Weiqing
Lian, Junkai
An, Dawei
Chen, Mingyang
Lei, Yinfeng
author_facet Huang, Weiqing
Lian, Junkai
An, Dawei
Chen, Mingyang
Lei, Yinfeng
author_sort Huang, Weiqing
collection PubMed
description Piezoelectric actuators with a flexible displacement amplification structure are widely used in the fields of precision driving and positioning. The displacement curve of conventional piezoelectric actuators is asymmetrical and non-linear, which leads to large non-linear errors and reduced positioning accuracy of these piezoelectric actuators. In this paper, a bidirectional active drive piezoelectric actuator is proposed, which suppresses the hysteresis phenomenon to a certain extent and reduces the non-linear error. Based on the deformation theory of the beam, a theoretical model of the rhombus mechanism was established, and the key parameters affecting the drive performance were analyzed. Then, the static and dynamic characteristics of series piezoelectric actuators were analyzed by the finite element method. A prototype was manufactured and the output performance was tested. The results show that the actuator can achieve a bidirectional symmetric output of amplification displacement, with a maximum value of 91.45 μm and a resolution of 35 nm. In addition, compared with the hysteresis loop of the piezoelectric stack, the nonlinear error is reduced by 62.94%.
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spelling pubmed-88795972022-02-26 Bidirectional Drive with Inhibited Hysteresis for Piezoelectric Actuators Huang, Weiqing Lian, Junkai An, Dawei Chen, Mingyang Lei, Yinfeng Sensors (Basel) Article Piezoelectric actuators with a flexible displacement amplification structure are widely used in the fields of precision driving and positioning. The displacement curve of conventional piezoelectric actuators is asymmetrical and non-linear, which leads to large non-linear errors and reduced positioning accuracy of these piezoelectric actuators. In this paper, a bidirectional active drive piezoelectric actuator is proposed, which suppresses the hysteresis phenomenon to a certain extent and reduces the non-linear error. Based on the deformation theory of the beam, a theoretical model of the rhombus mechanism was established, and the key parameters affecting the drive performance were analyzed. Then, the static and dynamic characteristics of series piezoelectric actuators were analyzed by the finite element method. A prototype was manufactured and the output performance was tested. The results show that the actuator can achieve a bidirectional symmetric output of amplification displacement, with a maximum value of 91.45 μm and a resolution of 35 nm. In addition, compared with the hysteresis loop of the piezoelectric stack, the nonlinear error is reduced by 62.94%. MDPI 2022-02-17 /pmc/articles/PMC8879597/ /pubmed/35214447 http://dx.doi.org/10.3390/s22041546 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Huang, Weiqing
Lian, Junkai
An, Dawei
Chen, Mingyang
Lei, Yinfeng
Bidirectional Drive with Inhibited Hysteresis for Piezoelectric Actuators
title Bidirectional Drive with Inhibited Hysteresis for Piezoelectric Actuators
title_full Bidirectional Drive with Inhibited Hysteresis for Piezoelectric Actuators
title_fullStr Bidirectional Drive with Inhibited Hysteresis for Piezoelectric Actuators
title_full_unstemmed Bidirectional Drive with Inhibited Hysteresis for Piezoelectric Actuators
title_short Bidirectional Drive with Inhibited Hysteresis for Piezoelectric Actuators
title_sort bidirectional drive with inhibited hysteresis for piezoelectric actuators
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8879597/
https://www.ncbi.nlm.nih.gov/pubmed/35214447
http://dx.doi.org/10.3390/s22041546
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