Charge-mode interfacing of piezoelectric interdigital Lamb wave transducers

被引：5
|
作者：
Giannelli, P. [1 ]
Bulletti, A. [1 ]
Capineri, L. [1 ]
机构：
[1] Univ Florence, Dept Informat Engn, Via S Marta 3, I-50139 Florence, Italy
来源：
ELECTRONICS LETTERS | 2016年 / 52卷 / 11期
关键词：
GUIDED-WAVES; ARRAYS;
D O I：
10.1049/el.2016.0804
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The adoption of charge-mode amplification, rather than the classical voltage-mode, to interface piezoelectric interdigital transducers made of polymer film to the data acquisition electronics is described. The circuit and operating principles of a charge amplifier are briefly explained, followed by the experimental comparison of a charge amplifier implementation with a solution based on an instrumentation amplifier. The experiments, based on A(0)-mode Lamb wave transmission over an aluminium plate, demonstrate the effectiveness of charge-mode interfacing and its insensitivity to cable loading.
引用
收藏
页码：894 / 895
页数：2
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