N. A. Ageikin, V. I. Anisimkin, N. V. Voronova, A. V. Smirnov
{"title":"Analysis of Radiation Absorption of Acoustic Lamb Waves in Plates Loaded with Inviscid Nonconducting Liquid","authors":"N. A. Ageikin, V. I. Anisimkin, N. V. Voronova, A. V. Smirnov","doi":"10.1134/s1064226923100029","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The dependence of radiation losses in a liquid on the value of displacement component <i>U</i><sub>3</sub> normal to the plate on the surface of a piezoelectric plate for Lamb waves of various orders has been experimentally investigated. The waves whose phase velocity <i>V</i><sub><i>n</i></sub> in the plate is greater than velocity <i>V</i><sub>l</sub> of the longitudinal volumetric acoustic wave in the liquid are considered. It is shown that at low values of <i>U</i><sub>3</sub>, there is no radiation into the liquid and the value of radiation losses is close to zero even at <i>V</i><sub><i>n</i></sub> > <i>V</i><sub>l</sub>, at high values of <i>U</i><sub>3</sub>, the value of radiation losses is large and for Lamb waves in the YZ–LiNbO<sub>3</sub> plate with a normalized wavelength thickness of 1.75 and a frequency of 16.97 MHz, it reaches a value of 4 dB/mm, comparable to the radiation losses of surface acoustic waves in the same material.</p>","PeriodicalId":50229,"journal":{"name":"Journal of Communications Technology and Electronics","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Communications Technology and Electronics","FirstCategoryId":"94","ListUrlMain":"https://doi.org/10.1134/s1064226923100029","RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
The dependence of radiation losses in a liquid on the value of displacement component U3 normal to the plate on the surface of a piezoelectric plate for Lamb waves of various orders has been experimentally investigated. The waves whose phase velocity Vn in the plate is greater than velocity Vl of the longitudinal volumetric acoustic wave in the liquid are considered. It is shown that at low values of U3, there is no radiation into the liquid and the value of radiation losses is close to zero even at Vn > Vl, at high values of U3, the value of radiation losses is large and for Lamb waves in the YZ–LiNbO3 plate with a normalized wavelength thickness of 1.75 and a frequency of 16.97 MHz, it reaches a value of 4 dB/mm, comparable to the radiation losses of surface acoustic waves in the same material.
期刊介绍：
Journal of Communications Technology and Electronics is a journal that publishes articles on a broad spectrum of theoretical, fundamental, and applied issues of radio engineering, communication, and electron physics. It publishes original articles from the leading scientific and research centers. The journal covers all essential branches of electromagnetics, wave propagation theory, signal processing, transmission lines, telecommunications, physics of semiconductors, and physical processes in electron devices, as well as applications in biology, medicine, microelectronics, nanoelectronics, electron and ion emission, etc.
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