Hydroacoustical emitter based on zero-order antisymmetric Lamb wave in a piezoelecrtric plate

被引：0
|
作者：
Kuznetsova, Iren E. [1 ]
Zaitsev, Boris D. [2 ]
Borodina, Irina A. [2 ]
Teplykh, Andrey A. [2 ]
Kolesov, Vladimir V. [1 ]
Sknarya, Anatolii V. [1 ]
Petrova, Nadezhda G. [1 ]
Nosov, Aleksander V. [3 ]
机构：
[1] RAS, Inst Radio Engn & Elect, Moscow 125009, Russia
[2] RAS, Inst Radio Engn & Elect, Saratov Branch, Saratov 410019, Russia
[3] RAS, Inst Oceanol, Moscow 117997, Russia
来源：
JOURNAL OF APPLIED PHYSICS | 2012年 / 112卷 / 12期
关键词：
PROPAGATION; LIQUID; FLUID;
D O I：
10.1063/1.4769303
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A piezoelectric plate supporting the propagation of antisymmetric zero-order (A(0)) Lamb wave is proposed to be used as a hydroacoustical waveguide emitter that transmits a bulk acoustic wave into a liquid. The emitter's directional pattern has been theoretically and experimentally examined for a frequency band of 89-107 kHz. An angular acoustic beam scanning was revealed to be realized by varying the A(0) wave frequency. It is shown that, unlike complicated emitting systems of phased array type, this nonmechanical scanning could be realized in a simple device. The obtained results are in a good agreement with the theoretical ones. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4769303]
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页数：5
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