Titlebook: Acoustical Imaging; Hua Lee,Glen Wade Book 1990 Springer Science+Business Media New York 1990 Phase.diffraction.history of engineering.ima

星星

https://doi.org/10.1007/978-3-663-04246-4he observation of AE precursors to delaminations, so that the potential for warning and prevention of delaminations may be realized. The results open the door to the triangulation and 2-D imaging of the stress zone giving rise to the precursor.

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https://doi.org/10.1007/978-3-662-36667-7in the layered structure. The received signal amplitude as a function of the incidence angle depends highly on the elastic parameters and thickness of the layers. The same problem is treated also theoretically. The experimental results are compared with theoretical predictions and they are found to be in good agreement.

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为敌

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Fr. Schultz,A. Götte,W. Petersenrface areas which are devoid of adhesive, have trapped gas, are not chemically bonded by the adhesive or are simply in mechanical contact, form areas of delaminations detrimental to the performance of these components.

北极人

https://doi.org/10.1007/978-3-662-36667-7port the feasibility of using these algorithms to extract impulse responses from the ultrasonic pulse echoes for use in defect classifications. The performances and computational complexities of these algorithms are analyzed and compared. In addition, application of these deconvolution techniques to B-scan enhancement is also discussed.

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https://doi.org/10.1007/978-3-322-82800-2his end, and to obtain greater insight as to the potential value of quantitative approaches to tissue characterization, we have investigated the ultrasonic properties of normal and neoplastic human tissues..

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