发布求助
文献互助 智能选刊 最新文献

Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications最新文献

筛选
英文 中文
Propagation behavior of Rayleigh waves in a phononicmagnetoelectric layered structure 瑞利波在声子磁电层状结构中的传播行为
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998579
Lili Yuan, Jianke Du, T. Ma, Ji Wang
{"title":"Propagation behavior of Rayleigh waves in a phononicmagnetoelectric layered structure","authors":"Lili Yuan, Jianke Du, T. Ma, Ji Wang","doi":"10.1109/SPAWDA.2014.6998579","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998579","url":null,"abstract":"In this paper, we investigate the characteristics of the Rayleigh surface acoustic waves in one-dimensional layered structures which consisting of a thin isotropic layer bonded perfectly to piezomagnetic/ piezoelectric periodic substrate. The explicit formulations of Rayleigh wave dispersion relations in such layered structure with consideration of magnetoelectrically open and shorted cases are derived based on the plane wave expansion method. The band gaps are calculated taking magneto-electro-elastic coupling into account. The influences of material and the filling fraction are discussed in detail. From the result, we can find the width of the open band gap is wider than the shorted case. The analytical method and the results can be useful for the design of the filters and transducers.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121074948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Analysis of the dispersion relation for Lithium niobate inversion layer 铌酸锂反转层色散关系分析
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998604
Dejin Huang, Ji Wang
{"title":"Analysis of the dispersion relation for Lithium niobate inversion layer","authors":"Dejin Huang, Ji Wang","doi":"10.1109/SPAWDA.2014.6998604","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998604","url":null,"abstract":"A new design using an Lithium niobate inversion layer has been gaining interest in the development of broadband and higher frequency transducers. In a ferroelectric inversion layer, the piezoelectric constants are opposite in sign to those of a regular layer. In this paper, the wave propagates is investigated along y-coordinate direction in the inversion layer. Based on the fundamental piezoelastic equations of piezoelectric material, the equations of motion can be divided into two groups. One group is for the antiplane in x-direction, and another one is for the plane problem in y-z plane. Then the dispersion relation is established by using of the boundary and continuous condition. Numerical solutions of the dispersion relation show frequency against wave number.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125765357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surface acoustic wave propagation characteristics of ScAlN/diamond structure with buried electrode 埋极ScAlN/金刚石结构的表面声波传播特性
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998578
Qiaozhen Zhang, Tao Han, Wei-biao Wang, K. Hashimoto, Jing Chen
{"title":"Surface acoustic wave propagation characteristics of ScAlN/diamond structure with buried electrode","authors":"Qiaozhen Zhang, Tao Han, Wei-biao Wang, K. Hashimoto, Jing Chen","doi":"10.1109/SPAWDA.2014.6998578","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998578","url":null,"abstract":"In this paper, a 3D Finite Element model (FEM) of a surface acoustic wave (SAW) resonator consists of a piezoelectric thin film ScAlN /diamond layered structure with buried interdigital electrodes (IDT) was performed and analyzed using commercial software COMSOL Multiphysics, FEM software. We have done investigation on SAW propagation characteristics on the layered structures for different thickness of ScAlN film and electrode as well as different electrode materials. Simulation results showed that the maximum electromechanical coupling factor Kmax2 achieved up to be 14.35% for Rayleigh mode and 10% for Sezawa mode, which is more than two times larger than the previous report (5.48%). This work is useful for design of SAW devices with wideband and high frequency.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127117135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Optimization frequency baseline noise of saw sensor in SAW/GC system saw /GC系统中锯传感器频率基线噪声优化
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998525
Minghua Liu, Jiuling Liu, Shitang He
{"title":"Optimization frequency baseline noise of saw sensor in SAW/GC system","authors":"Minghua Liu, Jiuling Liu, Shitang He","doi":"10.1109/SPAWDA.2014.6998525","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998525","url":null,"abstract":"The GC-SAW system which can rapidly detect volatile organic compounds (VOCs) has been development. The detection limit depends on both response and the baseline noise of frequency in this system. The frequency baseline noise includes the Oscillator noise and temperature coefficient of frequency (TCF) noise. The TCF of the SAW sensor is hard to remove, so the optimization is base on both SAW oscillator and the thermostat in this paper.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133536033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Negative refraction of acoustic waves in a tow-dimensional square zigzag lattice structure 二维方形之字形晶格结构中声波的负折射
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998556
Sheng-Dong Zhao, Yuesheng Wang
{"title":"Negative refraction of acoustic waves in a tow-dimensional square zigzag lattice structure","authors":"Sheng-Dong Zhao, Yuesheng Wang","doi":"10.1109/SPAWDA.2014.6998556","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998556","url":null,"abstract":"The negative refraction behavior and imaging effect for acoustic waves in a kind of two-dimensional square zigzag lattice structure are studied in this paper. Through the finite element method based on COMSOL we calculate the band structures and the equivalent frequency surfaces (EFS) of the considered system, thereby confirming the frequency range where the negative refraction presented. Due to the existence of a rotational symmetry in the calculated structure, a phase difference can be induced to the waves generated from a point source and a deviated negative refraction imaging can be achieved. This kind of phenomenon is also demonstrated by the simulation of two Gaussian beams incident to the structure from different direction with the same angle.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131560280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Propagation of surface acoustic wave in one-dimensional piezoelectric phononic crystals 一维压电声子晶体中表面声波的传播
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998600
Guang-ying Yang, Jianke Du, Ji Wang
{"title":"Propagation of surface acoustic wave in one-dimensional piezoelectric phononic crystals","authors":"Guang-ying Yang, Jianke Du, Ji Wang","doi":"10.1109/SPAWDA.2014.6998600","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998600","url":null,"abstract":"We analyze the propagation of Rayleigh surface acoustic waves in one dimensional piezoelectric phononic crystals covered with an elastic film. A complete surface acoustic wave band gap is calculated by means of the plane wave expansion method (PWE) and finite element method (FEM). We focus on the effects of the geometric dimensions including the thickness of the film and the filling fraction of the phononic crystal to the band gap. We can find the width of the band gap becomes small with the increase of the thickness of covered film, and the maximum band-gap width appears when the filling fraction is 0.45.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131097515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Quantitative analysis of feature pixels in the region of interest of ultrasound images for detection of thermal lesion induced by focused ultrasound 定量分析超声图像感兴趣区域的特征像素，用于检测聚焦超声引起的热损伤
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998568
Chu-chu He, Shou-bei Wang, Jing-feng Bai, Xiang Ji, Yazhu Chen
{"title":"Quantitative analysis of feature pixels in the region of interest of ultrasound images for detection of thermal lesion induced by focused ultrasound","authors":"Chu-chu He, Shou-bei Wang, Jing-feng Bai, Xiang Ji, Yazhu Chen","doi":"10.1109/SPAWDA.2014.6998568","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998568","url":null,"abstract":"The appearance of hyperecho is clinically considered as an indicator of tissue necrosis for ultrasonography-guided high-intensity focused ultrasound (USgHIFU). Nevertheless, there is unobservable hyperechoic change in the absence of cavitation or boiling during sonication. A quantitative analysis that could identify post-sonication change in the ultrasound image is proposed for the detection of HIFU-induced thermal lesion. Before analysis, the acquired images are preprocessed for cancelling of sonication-induced interference, and a region of interest (ROI) is set to cover the focal spot. In the analysis, two parameters that quantify the changes in grayscale of feature pixels in the ROI are used to detect the thermal lesion induced in pork ex vivo. It's found that both parameters can identify more true positives but fewer false negatives than visualizing hyperecho. This study demonstrates the analysis in combination with diagnostic ultrasound system can be used to predict thermal lesion during HIFU treatment.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115737232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Theoretical modeling and optimization design of high frequency piezoelectric polymer film hydrophone array 高频压电聚合物膜水听器阵列的理论建模与优化设计
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998569
Xin-ran Xu, Zhen-yu Zheng, Lin-lang Bai
{"title":"Theoretical modeling and optimization design of high frequency piezoelectric polymer film hydrophone array","authors":"Xin-ran Xu, Zhen-yu Zheng, Lin-lang Bai","doi":"10.1109/SPAWDA.2014.6998569","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998569","url":null,"abstract":"In this paper, a design of a high frequency PVDF hydrophone array is proposed. The FEM is utilized to simulate the performance of the hydrophone, and several design parameters are optimized to achieve higher and flatter sensitivity response over the working frequency band. The measured performance of the manufactured hydrophone array verifies the validity of the design.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122901325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A muliple outputs of piezoelectric transformer based on the stress distribution 基于应力分布的压电变压器多输出
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998534
Pei-yang Li, Yao-yao Cui, Zhangjian Li, Jie Xu, Weiquan Shao
{"title":"A muliple outputs of piezoelectric transformer based on the stress distribution","authors":"Pei-yang Li, Yao-yao Cui, Zhangjian Li, Jie Xu, Weiquan Shao","doi":"10.1109/SPAWDA.2014.6998534","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998534","url":null,"abstract":"A new type of piezoelectric transformer which is based on the stress distribution of the piezoelectric transformer to change the output voltage is presented. In this paper, we verified the feasibility of the principle of the new piezoelectric transformer from the simulation and experiment. The experiment results show a good consistent with the theoretical analysis. The designed piezoelectric transformer is very capable of multiple output and the structure is simple. The proposed piezoelectric transformers can provide applications in multiple output of piezoelectric transformers of all the vibration mode.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128393079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Defect detection by ultrasonic guided wave for a steel wire in the anchorage zones 超声导波对钢丝锚固区缺陷的检测
Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications Pub Date : 2014-12-29 DOI: 10.1109/SPAWDA.2014.6998562
Feng Yang, Yongdong Pan, Wei-zhen Chen
{"title":"Defect detection by ultrasonic guided wave for a steel wire in the anchorage zones","authors":"Feng Yang, Yongdong Pan, Wei-zhen Chen","doi":"10.1109/SPAWDA.2014.6998562","DOIUrl":"https://doi.org/10.1109/SPAWDA.2014.6998562","url":null,"abstract":"The aim of this paper is to investigate the propagation of ultrasonic waves in a steel wire and to determine whether it is possible to detect and locate the defects by the finite element method. First, the dispersion curves of longitudinal modes were obtained and calculated analytically. Then, the ultrasonic guided waves propagating in a steel wire with or without defects were simulated by the finite element method. To take account of the damage, the V-type groove defects were modeled to have different sizes in the mouth width and the tip depth. It is found that the finite element method can be applied to model the guided-wave propagation in a steel wire with corrosions.","PeriodicalId":412736,"journal":{"name":"Proceedings of the 2014 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128457581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
首页 上一页 下一页 尾页
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
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
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