Operational Performance of A0-mode Lamb Wave Interdigital Transducers Under Water-Loaded Condition
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概要
- 論文の詳細を見る
The operational performance of an A0-mode Lamb wave interdigital transducer is described in a delay line structure. The delay line is composed of two interdigital transducers (IDTs) on a thin piezoelectric ceramic plate, under the air- or water-loaded condition. The A0-mode Lamb wave device has two frequency ranges in the forms of nonleaky and leaky Lamb waves. The boundary frequency is related to the longitudinal wave velocity in water. The basic performance of the A0-mode delay line is presented with measured results in the vicinity of the transition region, where the A0-mode Lamb wave velocity is near the longitudinal wave velocity in water. The A0-mode IDT operates efficiently as an underwater transducer with a shallow radiation angle in the operation region as the leaky wave.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-08-15
著者
-
Toda Kohji
Departmemt Of Electronic Engineering National Defense Academy
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Fujita Takeshi
Department Of Applied Physics Osaka City University
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Fujita Takeshi
Department of Electrical and Electronic Engineering, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan
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