On-line data fusion of pulse-echo ultrasound for testing composite materials

被引：0
|
作者：
Noriega, VM [1 ]
Osegueda, RA [1 ]
Pierluissi, JH [1 ]
机构：
[1] Univ Texas, Fast Ctr Struct Integr Aerosp Syst, El Paso, TX 79968 USA
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：
An on-line fusion system for testing composite materials using ultrasound has been developed. The system offers a solution to the problem of obtaining false defects caused by uneven surfaces of composite materials. The A-scan signal is a bandpass signal. Finding the complex envelope of the bandpass signal helps track the thickness of the composite material as the transducer moves over it. Real-time digital signal processing is used to create a C-scan image by the Dempster-Shafer evidential reasoning method.
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页码：678 / 685
页数：8
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