Lamb wave propagation characteristics on water-loaded LiNbO3 thin plates

被引：0

作者：

机构：

[1] Sawaguchi, Akihiro

[2] Toda, Kohji

来源：

Sawaguchi, Akihiro | 1600年 / 32期

关键词：

Acoustic transducers - Electromechanical devices - Lithium compounds - Numerical analysis;

D O I：

暂无

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学科分类号：

摘要：

Propagation characteristics of leaky Lamb waves propagating along a water-solid interface of a rotated Y-cut X-propagating LiNbO3 thin plate are numerically analyzed. Velocity dispersion characteristics, mode conversion efficiency, electromechanical coupling constant of an interdigital transducer and transducer efficiency in the Z-cut plate are described as a function of frequency times substrate thickness. The zeroth-order symmetrical mode has a high coupling constant of over 20% for rotation angles from 0° to 15°. The experimental results obtained from the center frequencies of the leaky Lamb wave devices are in good agreement with results from numerical analysis. The analyzed propagation characteristics and transducer performance are useful in constructing a leaky Lamb wave device with a water-solid interface.

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