An Ultrasonic Laminated Transducer for Viscoelastic Media Detection

Based on the principle of underwater transducers, an ultrasonic four-laminated transducer with a frequency of 1 MHz was proposed to solve the problem of large energy attenuation when ultrasonic waves propagate in viscoelastic media. First, this study targeted solid rocket propellant as the research...

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Autores principales:	Shunmin Yang, Wenai Song, Yifang Chen, Lu Yang, Mingquan Wang, Yongjian Lian, Kangchi Liu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	ultrasonic laminated transducer viscoelastic media resonance frequency amplitude gain ultrasonic feature scanning system Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/d9c266345c4a42f281ed226aa440c107
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spelling	oai:doaj.org-article:d9c266345c4a42f281ed226aa440c1072021-11-11T19:10:43ZAn Ultrasonic Laminated Transducer for Viscoelastic Media Detection10.3390/s212171881424-8220https://doaj.org/article/d9c266345c4a42f281ed226aa440c1072021-10-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7188https://doaj.org/toc/1424-8220Based on the principle of underwater transducers, an ultrasonic four-laminated transducer with a frequency of 1 MHz was proposed to solve the problem of large energy attenuation when ultrasonic waves propagate in viscoelastic media. First, this study targeted solid rocket propellant as the research object, and the energy attenuation characteristics of ultrasonic waves propagating in viscoelastic media were analyzed through the derivation of the wave equation. Second, the structure of a four-laminated transducer with a frequency of 1 MHz was designed, and the resonance frequency was obtained by a graphical method. The sound field simulation and experimental results showed that the gain of the four-laminated transducer was 15 dB higher than that of the single-wafer transducer. An ultrasonic feature scanning system was built to complete the qualitative and quantitative detection of the smallest artificial hole (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>ϕ</mi></semantics></math></inline-formula>2 mm × 10 mm). Finally, two different natural defects were scanned, and the results were compared with those obtained using an industrial computed tomography detection system. The results showed that the ultrasonic method was more accurate in characterizing two natural defects. The primary cause was that the industrial CT was not sensitive to defects parallel to the incident direction of the ray. Therefore, this study not only achieved the qualitative and quantitative nondestructive testing of solid rocket propellants, but also provides an important reference for other viscoelastic components.Shunmin YangWenai SongYifang ChenLu YangMingquan WangYongjian LianKangchi LiuMDPI AGarticleultrasonic laminated transducerviscoelastic mediaresonance frequencyamplitude gainultrasonic feature scanning systemChemical technologyTP1-1185ENSensors, Vol 21, Iss 7188, p 7188 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	ultrasonic laminated transducer viscoelastic media resonance frequency amplitude gain ultrasonic feature scanning system Chemical technology TP1-1185
spellingShingle	ultrasonic laminated transducer viscoelastic media resonance frequency amplitude gain ultrasonic feature scanning system Chemical technology TP1-1185 Shunmin Yang Wenai Song Yifang Chen Lu Yang Mingquan Wang Yongjian Lian Kangchi Liu An Ultrasonic Laminated Transducer for Viscoelastic Media Detection
description	Based on the principle of underwater transducers, an ultrasonic four-laminated transducer with a frequency of 1 MHz was proposed to solve the problem of large energy attenuation when ultrasonic waves propagate in viscoelastic media. First, this study targeted solid rocket propellant as the research object, and the energy attenuation characteristics of ultrasonic waves propagating in viscoelastic media were analyzed through the derivation of the wave equation. Second, the structure of a four-laminated transducer with a frequency of 1 MHz was designed, and the resonance frequency was obtained by a graphical method. The sound field simulation and experimental results showed that the gain of the four-laminated transducer was 15 dB higher than that of the single-wafer transducer. An ultrasonic feature scanning system was built to complete the qualitative and quantitative detection of the smallest artificial hole (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi>ϕ</mi></semantics></math></inline-formula>2 mm × 10 mm). Finally, two different natural defects were scanned, and the results were compared with those obtained using an industrial computed tomography detection system. The results showed that the ultrasonic method was more accurate in characterizing two natural defects. The primary cause was that the industrial CT was not sensitive to defects parallel to the incident direction of the ray. Therefore, this study not only achieved the qualitative and quantitative nondestructive testing of solid rocket propellants, but also provides an important reference for other viscoelastic components.
format	article
author	Shunmin Yang Wenai Song Yifang Chen Lu Yang Mingquan Wang Yongjian Lian Kangchi Liu
author_facet	Shunmin Yang Wenai Song Yifang Chen Lu Yang Mingquan Wang Yongjian Lian Kangchi Liu
author_sort	Shunmin Yang
title	An Ultrasonic Laminated Transducer for Viscoelastic Media Detection
title_short	An Ultrasonic Laminated Transducer for Viscoelastic Media Detection
title_full	An Ultrasonic Laminated Transducer for Viscoelastic Media Detection
title_fullStr	An Ultrasonic Laminated Transducer for Viscoelastic Media Detection
title_full_unstemmed	An Ultrasonic Laminated Transducer for Viscoelastic Media Detection
title_sort	ultrasonic laminated transducer for viscoelastic media detection
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d9c266345c4a42f281ed226aa440c107
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An Ultrasonic Laminated Transducer for Viscoelastic Media Detection

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