Analysis of transducer effect sensitivity function in nonlinear ultrasound measurement system

被引：2

作者：

Kourtiche, D. ^{[1
]}

Nadi, M. ^{[1
]}

Rouane, A. ^{[1
]}

Chitnalah, A. ^{[2
]}

机构：

[1] Nancy Univ, Fac Sci & Tech, Lab Instrumentat Elect Nancy, Nancy, France

[2] Univ Cadi Ayad, Fac Sci, Marrakech Maroc, France

来源：

NDT & E INTERNATIONAL | 2010年 / 43卷 / 02期

关键词：

Nonlinear acoustic; B/A parameter; Second harmonic; Comparative method; Transducer sensitivity; BIOLOGICAL MEDIA; TRANSMISSION PARAMETERS; B/A MEASUREMENT;

D O I：

10.1016/j.ndteint.2009.10.005

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A procedure for measurement of the nonlinear B/A parameter using a simple comparative method is presented. A theoretical model of the measurement system is proposed. The sensitivity function of the measurement system is carried out and related to the electric and acoustic magnitudes. The optimal conditions were carried out with the aim to avoid sophisticated calculations of the transducers sensitivities. It has been shown that the sensitivity function can be kept close to the unit by a specific choice of the fundamental frequency. Indeed if the frequency of the source transducer is chosen lower than the resonance frequency we can avoid determining the sensitivities. Measurements have been carried out to validate the procedure in the frame of the theoretical aspects. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：145 / 151

页数：7

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