Thickness Gauging of Thin Metalware with Ultrasound Excited by Laser Nanopulses

Thickness Gauging of Thin Metalware with Ultrasound Excited by Laser Nanopulses

It has been established that an ultrasonic pulse is split when Lamb ultrasonic waves are excited in thin metalware by a thermosonic emitter 3 mm or more in diameter. This makes it possible to measure the group velocity of ultrasonic waves. A technique is proposed for thickness gauging of articles ba...

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Veröffentlicht in:Russian journal of nondestructive testing 2018-03, Vol.54 (3), p.147-150
Hauptverfasser: Gurevich, S. Yu, Petrov, Yu. V., Golubev, E. V.
Format: Artikel
Sprache:eng
Schlagworte:
Acoustic Methods
Characterization and Evaluation of Materials
Chemistry and Materials Science
Dependence
Emitters
Gaging
Group velocity
Materials Science
Structural Materials
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Beschreibung
Zusammenfassung:It has been established that an ultrasonic pulse is split when Lamb ultrasonic waves are excited in thin metalware by a thermosonic emitter 3 mm or more in diameter. This makes it possible to measure the group velocity of ultrasonic waves. A technique is proposed for thickness gauging of articles based on the dependence of the velocity on the vibration frequency and article thickness (dispersion curves).
ISSN:1061-8309
1608-3385
DOI:10.1134/S1061830918030063