Ultrasonic radiation from wedges of cubic profile: Experimental results
Ultrasonic radiation from wedges of cubic profile: Experimental results
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DOI：
10.1016/j.ultras.2015.07.002
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发表时间：
2015-12-01
期刊：
影响因子：
4.2
通讯作者：
Pieczonka, Lukasz
中科院分区：
文献类型：
--
作者：
Anderson, Brian E.;Remillieux, Marcel C.;Pieczonka, Lukasz
本文介绍的实验结果表明，增加超声辐射从一个楔形的立方轮廓相对于一个板的均匀厚度。立方轮廓的楔形件提供了从安装的压电换能器到周围空气中的高效声辐射匹配层。以前的研究与缺口的幂律轮廓的结构集中在振动缓解使用所谓的“声学黑洞”的效果，而在这里这样的结构是用来增强超声波辐射。这项工作为Remillieux等人（2014）的数值结果提供了实验验证。(C)2015爱思唯尔B.V.保留所有权利。
This paper presents experimental results demonstrating the increase in ultrasonic radiation obtained from a wedge of cubic profile relative to a plate of uniform thickness. The wedge of cubic profile provides high efficiency sound radiation matching layer from a mounted piezoelectric transducer into the surrounding air. Previous research on structures with indentations of power-law profile has focused on vibration mitigation using the so called "acoustic black-hole'' effect, whereas here such structures are used to enhance ultrasonic radiation. The work provides experimental verification of the numerical results of Remillieux et al. (2014). (C) 2015 Elsevier B.V. All rights reserved.