DESIGN AND IMPLEMENTATION OF MIXED-MODE TRANSDUCERS

被引:8
作者
CHOU, CH [1 ]
KHURIYAKUB, BT [1 ]
机构
[1] CHINESE ACAD SCI,INST ACOUST,ULTRASON LAB,BEIJING,PEOPLES R CHINA
关键词
Acoustic Transducers - Ceramic Materials--Piezoelectric;
D O I
10.1109/58.19173
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
In order to design a mixed-mode transducer with high efficiency and broad bandwidth for both longitudinal and shear wave modes, a theory is developed to determine the properties of this transducer with arbitrary acoustic loads at both ends of the piezoelectric element. Several Y-cut lithium niobate (LiNbO3) transducers were made on both [110] single-crystal bismuth germanium oxide (Bi12GeO20) and fused quartz. The piezoelectric plates were attached by indium bonding and later polished to operate in the 100-MHz frequency range. The experimental data of round-trip insertion loss for both longitudinal and shear modes showed an excellent agreement with theoretical predictions.
引用
收藏
页码:337 / 341
页数:5
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