Anomalies in the spectrum of scattered ultrasonic waves from periodic interfaces.
In: Journal of the Acoustical Society of America, Jg. 68 (1980-11-02), Heft S1, S. S81
academicJournal
Zugriff:
Scattering of broadband ultrasonic waves from water-solid, solid-air and solid-solid interfaces with periodic structures was investigated by ultrasonic spectroscopy. The interface is a periodic grating (of triangular shape) with periodicity ranged from 100 to 1800 μ. Both infinite and finite surfaces are studied. The spectrum of the scattered wave shows sharp minima (anomalies) at certain frequencies which are characteristic of the materials and parameters of the grating. These 'missing' frequencies are identified as diffracted orders along the interface with bulk or surface wave velocities. Studying bondings between two surfaces with the aid of these spectral anomalies is suggested. [This work was supported jointly by the French CNRS and by the Center for Advanced NDE operated by the Science Center, Rockwell International, for ARPA and AFML.] [ABSTRACT FROM AUTHOR]
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Titel: |
Anomalies in the spectrum of scattered ultrasonic waves from periodic interfaces.
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Autor/in / Beteiligte Person: | Jungman, A. ; Quentin, Gerard ; Adler, Laszlo |
Zeitschrift: | Journal of the Acoustical Society of America, Jg. 68 (1980-11-02), Heft S1, S. S81 |
Veröffentlichung: | 1980 |
Medientyp: | academicJournal |
ISSN: | 0001-4966 (print) |
DOI: | 10.1121/1.2004945 |
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