An accurate non-contacting laser based system for surface wave velocity measurement

Michael Geoffrey Somekh; M. Liu; H. P. Ho; C. W. See

doi:10.1088/0957-0233/6/9/013

An accurate non-contacting laser based system for surface wave velocity measurement

Michael Geoffrey Somekh, M. Liu, H. P. Ho, C. W. See

Research output: Journal article publication › Journal article › Academic research › peer-review

14 Citations (Scopus)

Abstract

This paper describes the development of a new optical system for accurate measurement of surface wave velocity and attenuation. A mode-locked Q-switch laser generates a Rayleigh wave tone burst which is detected with a two beam interferometer system. The resulting signals are then processed using a simple cross correlation algorithm. Results demonstrating the velocity resolution of the system are presented on both ceramic and metallic samples.

Original language	English
Article number	013
Pages (from-to)	1329-1337
Number of pages	9
Journal	Measurement Science and Technology
Volume	6
Issue number	9
DOIs	https://doi.org/10.1088/0957-0233/6/9/013
Publication status	Published - 1 Dec 1995
Externally published	Yes

ASJC Scopus subject areas

Instrumentation
Engineering (miscellaneous)
Applied Mathematics

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10.1088/0957-0233/6/9/013

Cite this

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AB - This paper describes the development of a new optical system for accurate measurement of surface wave velocity and attenuation. A mode-locked Q-switch laser generates a Rayleigh wave tone burst which is detected with a two beam interferometer system. The resulting signals are then processed using a simple cross correlation algorithm. Results demonstrating the velocity resolution of the system are presented on both ceramic and metallic samples.

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An accurate non-contacting laser based system for surface wave velocity measurement

Abstract

ASJC Scopus subject areas

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