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A Frequency-Dependent Dynamic Electric–Mechanical Network for Thin-Wafer Piezoelectric Transducers Polarized in the Thickness Direction: Physical Model and Experimental Confirmation

This paper is concerned with electric–acoustic/acoustic–electric conversions of thin-wafer piezoelectric transducers polarized in the thickness direction. By introducing two mechanical components with frequency-dependent values, i.e., radiation resistance and radiation mass, into the equivalent circ...

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Detalles Bibliográficos
Autores principales: Fa, Lin, Liu, Dongning, Gong, Hong, Chen, Wenhui, Zhang, Yandong, Wang, Yimei, Liang, Rui, Wang, Baoni, Shi, Guiquan, Fang, Xiangrong, Li, Yuxia, Zhao, Meishan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456616/
https://www.ncbi.nlm.nih.gov/pubmed/37630175
http://dx.doi.org/10.3390/mi14081641
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author Fa, Lin
Liu, Dongning
Gong, Hong
Chen, Wenhui
Zhang, Yandong
Wang, Yimei
Liang, Rui
Wang, Baoni
Shi, Guiquan
Fang, Xiangrong
Li, Yuxia
Zhao, Meishan
author_facet Fa, Lin
Liu, Dongning
Gong, Hong
Chen, Wenhui
Zhang, Yandong
Wang, Yimei
Liang, Rui
Wang, Baoni
Shi, Guiquan
Fang, Xiangrong
Li, Yuxia
Zhao, Meishan
author_sort Fa, Lin
collection PubMed
description This paper is concerned with electric–acoustic/acoustic–electric conversions of thin-wafer piezoelectric transducers polarized in the thickness direction. By introducing two mechanical components with frequency-dependent values, i.e., radiation resistance and radiation mass, into the equivalent circuit of the thin-wafer piezoelectric transducer, we established a frequency-dependent dynamic mechanic-electric equivalent network with four terminals for an arbitrary given frequency, an enhancement from the conventional circuit networks. We derived the analytic expressions of its electric–acoustic and acoustic–electric conversion impulse responses using the four-terminal equivalent circuit to replace the traditional six-terminal equivalent circuit for a thin-wafer transducer with harmonic vibrational motion. For multifrequency electrical/acoustic signals acting on the transducer, we established parallel electric–acoustic/acoustic–electric conversion transmission networks. These two transmission network models have simple structures and clear physical and mathematical descriptions of thin-wafer transducers for electric–acoustic/acoustic–electric conversion when excited by a multifrequency electric/acoustic signal wavelet. The calculated results showed that the transducer’s center frequency shift relates to its mechanical load and vibration state. The method reported in this paper can be applied to conventional-sized and small-sized piezoelectric transducers with universal applicability.
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spelling pubmed-104566162023-08-26 A Frequency-Dependent Dynamic Electric–Mechanical Network for Thin-Wafer Piezoelectric Transducers Polarized in the Thickness Direction: Physical Model and Experimental Confirmation Fa, Lin Liu, Dongning Gong, Hong Chen, Wenhui Zhang, Yandong Wang, Yimei Liang, Rui Wang, Baoni Shi, Guiquan Fang, Xiangrong Li, Yuxia Zhao, Meishan Micromachines (Basel) Article This paper is concerned with electric–acoustic/acoustic–electric conversions of thin-wafer piezoelectric transducers polarized in the thickness direction. By introducing two mechanical components with frequency-dependent values, i.e., radiation resistance and radiation mass, into the equivalent circuit of the thin-wafer piezoelectric transducer, we established a frequency-dependent dynamic mechanic-electric equivalent network with four terminals for an arbitrary given frequency, an enhancement from the conventional circuit networks. We derived the analytic expressions of its electric–acoustic and acoustic–electric conversion impulse responses using the four-terminal equivalent circuit to replace the traditional six-terminal equivalent circuit for a thin-wafer transducer with harmonic vibrational motion. For multifrequency electrical/acoustic signals acting on the transducer, we established parallel electric–acoustic/acoustic–electric conversion transmission networks. These two transmission network models have simple structures and clear physical and mathematical descriptions of thin-wafer transducers for electric–acoustic/acoustic–electric conversion when excited by a multifrequency electric/acoustic signal wavelet. The calculated results showed that the transducer’s center frequency shift relates to its mechanical load and vibration state. The method reported in this paper can be applied to conventional-sized and small-sized piezoelectric transducers with universal applicability. MDPI 2023-08-20 /pmc/articles/PMC10456616/ /pubmed/37630175 http://dx.doi.org/10.3390/mi14081641 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
Fa, Lin
Liu, Dongning
Gong, Hong
Chen, Wenhui
Zhang, Yandong
Wang, Yimei
Liang, Rui
Wang, Baoni
Shi, Guiquan
Fang, Xiangrong
Li, Yuxia
Zhao, Meishan
A Frequency-Dependent Dynamic Electric–Mechanical Network for Thin-Wafer Piezoelectric Transducers Polarized in the Thickness Direction: Physical Model and Experimental Confirmation
title A Frequency-Dependent Dynamic Electric–Mechanical Network for Thin-Wafer Piezoelectric Transducers Polarized in the Thickness Direction: Physical Model and Experimental Confirmation
title_full A Frequency-Dependent Dynamic Electric–Mechanical Network for Thin-Wafer Piezoelectric Transducers Polarized in the Thickness Direction: Physical Model and Experimental Confirmation
title_fullStr A Frequency-Dependent Dynamic Electric–Mechanical Network for Thin-Wafer Piezoelectric Transducers Polarized in the Thickness Direction: Physical Model and Experimental Confirmation
title_full_unstemmed A Frequency-Dependent Dynamic Electric–Mechanical Network for Thin-Wafer Piezoelectric Transducers Polarized in the Thickness Direction: Physical Model and Experimental Confirmation
title_short A Frequency-Dependent Dynamic Electric–Mechanical Network for Thin-Wafer Piezoelectric Transducers Polarized in the Thickness Direction: Physical Model and Experimental Confirmation
title_sort frequency-dependent dynamic electric–mechanical network for thin-wafer piezoelectric transducers polarized in the thickness direction: physical model and experimental confirmation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456616/
https://www.ncbi.nlm.nih.gov/pubmed/37630175
http://dx.doi.org/10.3390/mi14081641
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