Repository Manuscript.pdf (636.59 kB)
0/0

Visualising scattering underwater acoustic fields using laser Doppler vibrometry

Download (636.59 kB)
journal contribution
posted on 18.09.2008 by Andy Harland, Jon Petzing, John Tyrer
Analysis of acoustic wavefronts are important for a number of engineering design, communication and healthrelated reasons, and it is very desirable to be able to understand the interaction of acoustic fields and energy with obstructions. Experimental analysis of acoustic wavefronts in water has traditionally been completed with single or arrays of piezoelectric or magnetostrictive transducers or hydrophones. These have been very successful, but the presence of transducers within the acoustic region can in some circumstances be undesirable. The research reported here, describes the novel application of scanning laser Doppler vibrometry to the analysis of underwater acoustic wavefronts, impinging on circular cross section obstructions. The results demonstrate that this new non-invasive acoustics measurement technique can successfully visualise and measure reflected acoustic fields, diffraction and refraction effects.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

HARLAND, A.R., PETZING, J.N. and TRYER, J.R., 2008. Visualising scattering underwater acoustic fields using laser Doppler vibrometry. Journal of Sound and Vibration, 305, pp. 659–671 [doi:10.1016/j.jsv.2007.04.026]

Publisher

© Elsevier

Publication date

2008

Notes

This journal article was published in the journal, Journal of of Sound and Vibration [© Elsevier] and the definitive version is available at: http://www.sciencedirect.com/science/journal/0022460X

ISSN

0022-460X

Language

en

Exports

Logo branding

Keyword(s)

Exports