Measurement of air-coupled transducer characteristics for ultrasonic non-destructive evaluation

被引：0
|
作者：
Biateau, C [1 ]
Hosten, B [1 ]
Roziere, D [1 ]
机构：
[1] Univ Bordeaux 1, Mecan Phys Lab, UMR CNRS 5469, F-33405 Talence, France
来源：
REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 21A & B | 2002年 / 615卷
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D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This paper presents a method to calibrate air-coupled transducers by measuring their efficiency at the emission and their sensitivity at the reception. A thin membrane placed in the acoustic field measures the pressure field created by the emitter. Once the emitted acoustic filed is known, it serves to calibrate the receiver. The method is applied to the study of capacitive transducers made with a sandblasted back-plate, Results show the influence of the.-rain size on the efficiency, the sensitivity and the frequency bandwidth of the transducers.
引用
收藏
页码：921 / 928
页数：8
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