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Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment
To align a pair of optical fibers, it is required that the micro actuators used be small and have the characteristics of high accuracy and fast response time. A trapezoidal piezoelectric bimorph actuator was proposed for pushing and pulling an optical fiber. Based on a mathematical model and finite...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488945/ https://www.ncbi.nlm.nih.gov/pubmed/37687504 http://dx.doi.org/10.3390/ma16175811 |
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author | Wang, Xinjie Li, Jianhui Lu, Xingfan |
author_facet | Wang, Xinjie Li, Jianhui Lu, Xingfan |
author_sort | Wang, Xinjie |
collection | PubMed |
description | To align a pair of optical fibers, it is required that the micro actuators used be small and have the characteristics of high accuracy and fast response time. A trapezoidal piezoelectric bimorph actuator was proposed for pushing and pulling an optical fiber. Based on a mathematical model and finite element model established in this paper, we analyzed the output displacement and output force of the proposed trapezoidal piezoelectric actuator under the influence of structural parameters. Since the piezoelectric bimorph actuator had a hysteresis effect, we applied particle swarm optimization to establish a Prandtl–Ishlinskii (PI) model for actuator and parameter identification. Then, two control methods, namely feedforward control considering hysteresis effects and fuzzy proportional-integral-derivative (PID) control employing feedback, were proposed. Finally, a composite control model combining the two control methods with fewer tracking errors was designed. The results show that the output displacement of this actuator is larger than that of a rectangular one. Additionally, the fuzzy PID control has a lower response time (15 ms) and an overshoot (5%). |
format | Online Article Text |
id | pubmed-10488945 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104889452023-09-09 Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment Wang, Xinjie Li, Jianhui Lu, Xingfan Materials (Basel) Article To align a pair of optical fibers, it is required that the micro actuators used be small and have the characteristics of high accuracy and fast response time. A trapezoidal piezoelectric bimorph actuator was proposed for pushing and pulling an optical fiber. Based on a mathematical model and finite element model established in this paper, we analyzed the output displacement and output force of the proposed trapezoidal piezoelectric actuator under the influence of structural parameters. Since the piezoelectric bimorph actuator had a hysteresis effect, we applied particle swarm optimization to establish a Prandtl–Ishlinskii (PI) model for actuator and parameter identification. Then, two control methods, namely feedforward control considering hysteresis effects and fuzzy proportional-integral-derivative (PID) control employing feedback, were proposed. Finally, a composite control model combining the two control methods with fewer tracking errors was designed. The results show that the output displacement of this actuator is larger than that of a rectangular one. Additionally, the fuzzy PID control has a lower response time (15 ms) and an overshoot (5%). MDPI 2023-08-24 /pmc/articles/PMC10488945/ /pubmed/37687504 http://dx.doi.org/10.3390/ma16175811 Text en © 2023 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 Wang, Xinjie Li, Jianhui Lu, Xingfan Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment |
title | Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment |
title_full | Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment |
title_fullStr | Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment |
title_full_unstemmed | Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment |
title_short | Design and Control of a Trapezoidal Piezoelectric Bimorph Actuator for Optical Fiber Alignment |
title_sort | design and control of a trapezoidal piezoelectric bimorph actuator for optical fiber alignment |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10488945/ https://www.ncbi.nlm.nih.gov/pubmed/37687504 http://dx.doi.org/10.3390/ma16175811 |
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