Ultrasonic Imaging Project and Test Bed

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1979
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McKinley, B
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Review of Progress in Quantitative Nondestructive Evaluation
Center for Nondestructive Evaluation

Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.

This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.

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This paper describes the Lawrence Livermore Laboratory (LLL) Ultrasonic Imaging Project. The project's purpose is to increase resolution and produce accurate graphic ultrasonic images. Sub projects directed at achieving these goals are: (1) mathematic modeling of elastic wave scattering for realistic defects, (2) developing signal analysis techniques to allow thorough quantitative ultrasonic field measurements, (3) design and fabrication of a high precision, versatile, computer controlled two-transducer ultrasonic test bed with on-line computerized data acquisition, analysis, and image display. Improved methods for quantitative evaluation of bond strength, cracks, and joining are required by current LLL programs. From these requirements the necessity for a two transducer test bed has become evident. The major emphasis of this paper is to describe the sophisticated new concept in ultrasonic test beds now under development.

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