Low insertion loss air-coupled ultrasonic transducer with parallel laminated piezoelectric structure

This work presents a low insertion loss air-coupled ultrasonic transducer with a parallel laminated piezoelectric structure. The relevant parameters of this structure are theoretically analyzed. For overcoming the enormous acoustic impedance mismatch between the piezoelectric material and air, a 1–3...

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Main Authors:	Xiaoyu Wang, Xun Gong, Congcong Li, Ranran Wu, Zhenglin Chen, Haodong Wu, De Zhang, Xun Cao
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2020-10-01
Series:	AIP Advances
Online Access:	http://dx.doi.org/10.1063/5.0022598

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record_format	Article
spelling	doaj-8b3162e0b42f42ce8735de9d68cb8c982020-11-25T04:05:20ZengAIP Publishing LLCAIP Advances2158-32262020-10-011010105331105331-710.1063/5.0022598Low insertion loss air-coupled ultrasonic transducer with parallel laminated piezoelectric structureXiaoyu Wang0Xun Gong1Congcong Li2Ranran Wu3Zhenglin Chen4Haodong Wu5De Zhang6Xun Cao7Key Laboratory of Modern Acoustics, Ministry of Education, Department of Acoustic Science and Engineering, School of Physics, Nanjing University, Nanjing 210093, ChinaKey Laboratory of Modern Acoustics, Ministry of Education, Department of Acoustic Science and Engineering, School of Physics, Nanjing University, Nanjing 210093, ChinaKey Laboratory of Modern Acoustics, Ministry of Education, Department of Acoustic Science and Engineering, School of Physics, Nanjing University, Nanjing 210093, ChinaKey Laboratory of Modern Acoustics, Ministry of Education, Department of Acoustic Science and Engineering, School of Physics, Nanjing University, Nanjing 210093, ChinaSchool of Electronics Science and Engineering, Nanjing University, Nanjing 210123, ChinaKey Laboratory of Modern Acoustics, Ministry of Education, Department of Acoustic Science and Engineering, School of Physics, Nanjing University, Nanjing 210093, ChinaKey Laboratory of Modern Acoustics, Ministry of Education, Department of Acoustic Science and Engineering, School of Physics, Nanjing University, Nanjing 210093, ChinaSchool of Electronics Science and Engineering, Nanjing University, Nanjing 210123, ChinaThis work presents a low insertion loss air-coupled ultrasonic transducer with a parallel laminated piezoelectric structure. The relevant parameters of this structure are theoretically analyzed. For overcoming the enormous acoustic impedance mismatch between the piezoelectric material and air, a 1–3 connectivity piezoelectric composite, and a stack of two low acoustic impedance matching layers are adopted. The experimental results show that the insertion loss of −17.5 dB is obtained under the pitch-catch mode with the length of the air column of 50 mm by selecting a suitable air-coupled ultrasonic transducer combination. The insertion loss improvement is 3.8 dB compared with a monolayer piezoelectric structure with an identical active area.http://dx.doi.org/10.1063/5.0022598
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Xiaoyu Wang Xun Gong Congcong Li Ranran Wu Zhenglin Chen Haodong Wu De Zhang Xun Cao
spellingShingle	Xiaoyu Wang Xun Gong Congcong Li Ranran Wu Zhenglin Chen Haodong Wu De Zhang Xun Cao Low insertion loss air-coupled ultrasonic transducer with parallel laminated piezoelectric structure AIP Advances
author_facet	Xiaoyu Wang Xun Gong Congcong Li Ranran Wu Zhenglin Chen Haodong Wu De Zhang Xun Cao
author_sort	Xiaoyu Wang
title	Low insertion loss air-coupled ultrasonic transducer with parallel laminated piezoelectric structure
title_short	Low insertion loss air-coupled ultrasonic transducer with parallel laminated piezoelectric structure
title_full	Low insertion loss air-coupled ultrasonic transducer with parallel laminated piezoelectric structure
title_fullStr	Low insertion loss air-coupled ultrasonic transducer with parallel laminated piezoelectric structure
title_full_unstemmed	Low insertion loss air-coupled ultrasonic transducer with parallel laminated piezoelectric structure
title_sort	low insertion loss air-coupled ultrasonic transducer with parallel laminated piezoelectric structure
publisher	AIP Publishing LLC
series	AIP Advances
issn	2158-3226
publishDate	2020-10-01
description	This work presents a low insertion loss air-coupled ultrasonic transducer with a parallel laminated piezoelectric structure. The relevant parameters of this structure are theoretically analyzed. For overcoming the enormous acoustic impedance mismatch between the piezoelectric material and air, a 1–3 connectivity piezoelectric composite, and a stack of two low acoustic impedance matching layers are adopted. The experimental results show that the insertion loss of −17.5 dB is obtained under the pitch-catch mode with the length of the air column of 50 mm by selecting a suitable air-coupled ultrasonic transducer combination. The insertion loss improvement is 3.8 dB compared with a monolayer piezoelectric structure with an identical active area.
url	http://dx.doi.org/10.1063/5.0022598
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Low insertion loss air-coupled ultrasonic transducer with parallel laminated piezoelectric structure

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