1996 IEEE Ultrasonics Symposium. Proceedings最新文献_第4页

A SAW resonator filter using longitudinal and transverse modes 使用纵向和横向模式的SAW谐振器滤波器

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI: 10.1109/ULTSYM.1996.583788

G. Martin, B. Wall

引用次数: 7

Experimental investigation on the operation of SAW devices at harmonic frequencies with stepped-finger interdigital transducer 步进指间数字换能器在谐波频率下工作声表面波器件的实验研究

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI: 10.1109/ULTSYM.1996.583971

T. Sato, S. Otsuka, H. Okajima, R. Motegi

引用次数: 2

Measurement of shear impedances of viscoelastic fluids 粘弹性流体剪切阻抗的测量

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI: 10.1109/ULTSYM.1996.584010

S. Sheen, H. Chien, A. C. Raptis

引用次数: 17

Ultrasound image compression exploiting image formation models 利用图像形成模型的超声图像压缩

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI: 10.1109/ULTSYM.1996.584302

R. M. Cramblitt, K. Parker

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引用次数: 6

Singularities of the planar Green function in the spectral domain 平面格林函数在谱域的奇异性

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI: 10.1109/ULTSYM.1996.583964

E. Danicki, W. Laprus

引用次数: 0

Blood velocity estimation with high frequency intravascular ultrasound 用高频血管内超声估计血流速度

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI: 10.1109/ULTSYM.1996.584350

W. Li, C. Lancée, A. V. D. van der Steen, E. Gussenhoven, N. Bom

引用次数: 13

Degenerated coupled resonator filters 退化耦合谐振器滤波器

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI: 10.1109/ULTSYM.1996.583775

V. Plessky, T. Thorvaldsson, S. Kondratiev

引用次数: 7

Estimation of shell characteristics using time-frequency patterns and neural network 基于时频模式和神经网络的壳体特性估计

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI: 10.1109/ULTSYM.1996.584074

M. Zakharia, P. Chevret, F. Magand

{"title":"Estimation of shell characteristics using time-frequency patterns and neural network","authors":"M. Zakharia, P. Chevret, F. Magand","doi":"10.1109/ULTSYM.1996.584074","DOIUrl":"https://doi.org/10.1109/ULTSYM.1996.584074","url":null,"abstract":"Surface acoustic waves circumnavigating around an elastic shell carry out very valuable information on its mechanical and geometrical properties and can be used for ultrasonic inspection and non destructive evaluation as well as sonar classification. This information can be decomposed into several elementary components associated to various physical phenomena. Time-frequency representations (and, in particular, the Smoothed Pseudo Wigner-Ville Distribution) have been shown to be very relevant tools for describing these phenomena. Several experiments and simulations have shown, in the time-frequency plane, the importance of a frequency range associated to the so-called \"coincidence frequency\" (interaction between a Lamb wave and a Stoneley type wave). This pattern has been extracted from the time-frequency image for a great variety of shells in order to describe the direct problem with a reduced set of characteristics parameters. The inverse problem consists in estimating the mechanical and geometrical properties of the shell from these parameters. An innovative neural network approach has been developed for estimating these properties and has been applied to both simulated and experimental data. The method shows a very good accuracy (error less than a few percents on the estimation of the shell characteristics: thickness, density and shear wave velocity).","PeriodicalId":278111,"journal":{"name":"1996 IEEE Ultrasonics Symposium. Proceedings","volume":"245 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115603181","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: 4

Development of analysis techniques for SAW transverse-coupled waveguide resonator filters 声表面波横向耦合波导滤波器分析技术的发展

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI: 10.1109/ULTSYM.1996.583954

D. P. Morgan, S. Richards, A. Staples

引用次数: 8

In situ simultaneous measurement of temperature and thin film thickness with ultrasonic techniques 用超声波技术在现场同时测量温度和薄膜厚度

1996 IEEE Ultrasonics Symposium. Proceedings Pub Date : 1996-11-03 DOI: 10.1109/ULTSYM.1996.584169

J. Pei, B. Khuri-Yakub, F. Degertekin, B. Honein, F. Stanke, K. Saraswat

引用次数: 2