一种单指无内反射结构换能器的频谱分析  

Spectral Analysis of a Single-Finger Transducer without Internal Reflection

作　　者：曹亮[1] 傅金桥[1] 肖燕[1] 

机构地区：[1]四川压电与声光技术研究所

出　　处：《压电与声光》1996年第1期1-5,共5页Piezoelectrics & Acoustooptics

摘　　要：采用叉指换能器的脉冲响应模型，建立了三指群和四指群分组单指无内反射结构换能器的脉冲响应解析表达式，并在此基础上通过付氏级数分解，分析了该结构的频谱特性，最后给出了实验验证结果．The analytical expressions of pulse response of a grouping single-finger transducerwithout internal renection are established in 3-finger and 4-finger group using a model of pulse response of interdigital transducer,and through decomposition of the Fourior progressions,the spectral characteristics of the transducer structure are analyzed.At last,the experimental results aregiven in the paper.

关 键 词：声表面波 叉指换能器 指间反射 频谱分析 

分 类 号：TN65[电子电信—电路与系统]