PVDF transducer shape optimization for the characterization of anisotropic materials

Diego Cowes, Ignacio Mieza, Martín Gómez
{"title":"PVDF transducer shape optimization for the characterization of anisotropic materials","authors":"Diego Cowes, Ignacio Mieza, Martín Gómez","doi":"arxiv-2406.12749","DOIUrl":null,"url":null,"abstract":"In the context of the ultrasonic determination of mechanical properties, it\nis common to use oblique incident waves to characterize fluid-immersed\nanisotropic samples. The lateral displacement of the ultrasonic field owing to\nleaky guided wave phenomena poses a challenge for data inversion because beam\nspreading is rarely well represented by plane-wave models. In this study, a\nfinite beam model based on the angular spectrum method was developed to\nestimate the influence of the transducer shape and position on the transmitted\nsignals. Additionally, anisotropic solids were considered so that the beam\nskewing effect was contemplated. A small-emitter large-receiver configuration\nwas chosen, and the ideal shape and position of the receiving transducer were\nobtained through a meta-heuristic optimization approach with the goal of\nachieving a measurement system that sufficiently resembles plane-wave\npropagation. A polyvinylidene fluoride receiver was fabricated and tested in\nthree cases: a single-crystal silicon wafer, a lightly anisotropic\nstainless-steel plate, and a highly anisotropic composite plate. Good agreement\nwas found between the measurements and the plane-wave model.","PeriodicalId":501482,"journal":{"name":"arXiv - PHYS - Classical Physics","volume":"176 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Classical Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2406.12749","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

In the context of the ultrasonic determination of mechanical properties, it is common to use oblique incident waves to characterize fluid-immersed anisotropic samples. The lateral displacement of the ultrasonic field owing to leaky guided wave phenomena poses a challenge for data inversion because beam spreading is rarely well represented by plane-wave models. In this study, a finite beam model based on the angular spectrum method was developed to estimate the influence of the transducer shape and position on the transmitted signals. Additionally, anisotropic solids were considered so that the beam skewing effect was contemplated. A small-emitter large-receiver configuration was chosen, and the ideal shape and position of the receiving transducer were obtained through a meta-heuristic optimization approach with the goal of achieving a measurement system that sufficiently resembles plane-wave propagation. A polyvinylidene fluoride receiver was fabricated and tested in three cases: a single-crystal silicon wafer, a lightly anisotropic stainless-steel plate, and a highly anisotropic composite plate. Good agreement was found between the measurements and the plane-wave model.
用于表征各向异性材料的 PVDF 传感器形状优化
在超声波测定机械特性的过程中,通常使用斜入射波来表征浸没在各向异性流体中的样品。由于泄漏导波现象导致的超声波场横向位移给数据反演带来了挑战,因为平面波模型很少能很好地表示波束传播。在这项研究中,基于角频谱法建立了无限波束模型,以估计换能器形状和位置对传输信号的影响。此外,还考虑了各向异性的固体,从而考虑了波束偏转效应。我们选择了一种小发射器大接收器的配置,并通过元启发式优化方法获得了接收换能器的理想形状和位置,目的是实现一种充分类似于平面波传播的测量系统。在三种情况下制作并测试了聚偏氟乙烯接收器:单晶硅片、轻度各向异性不锈钢板和高度各向异性复合板。测量结果与平面波模型之间具有良好的一致性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信