Surface roughness imaging using the acoustic emission induced by the dynamic radiation force of ultrasound

F. G. Mitri, U. Eberlein, Mostafa Fatemi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

High frequency ultrasound imaging systems are traditionally used in industry to obtain high resolution images of solid surfaces, and in some cases, to evaluate surface roughness. In this study we show that imaging fine surface roughness in the order of few microns is achievable at audio range frequencies (kilohertz range) by using the vibroacoustography (VA) technique. This technique allows one to image surface roughness on the basis of the ultrasound radiation force stimulated acoustic emission in a standing ultrasound wave field. Images obtained here demonstrate that VA may be used as a powerful tool for nondestructive inspection and imaging of surface roughness.

Original languageEnglish (US)
Article number234105
JournalApplied Physics Letters
Volume88
Issue number23
DOIs
StatePublished - Jun 5 2006

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acoustic emission
surface roughness
radiation
stimulated emission
standing waves
solid surfaces
inspection
frequency ranges
industries
high resolution

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Surface roughness imaging using the acoustic emission induced by the dynamic radiation force of ultrasound. / Mitri, F. G.; Eberlein, U.; Fatemi, Mostafa.

In: Applied Physics Letters, Vol. 88, No. 23, 234105, 05.06.2006.

Research output: Contribution to journalArticle

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