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Proceedings Paper

Surface coating influence on elastic properties of spruce wood by means of holographic vibration mode visualization
Author(s): M. Bongova; Stanislav Urgela
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Paper Abstract

Physicoacoustical properties of wood influenced by surface coating are studied by modal analysis. Resonant spruce plates were coated by stain, nitrocellulose varnish, special violin paint and shellac. The modal testing was performed by electronic speckle pattern interferometry. For this purpose, equipment called VIBROVIZER was used. The collected values of physicoacoustical characteristics (density, Young's modulus, acoustic constant) were compared using the graphic plots of data. The 3D plots help to evaluate wooden plates from a viewpoint of the quality control. This fact offers new opportunity for musical instrument manufacturers.

Paper Details

Date Published: 14 July 1999
PDF: 8 pages
Proc. SPIE 3820, 11th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, (14 July 1999); doi: 10.1117/12.353047
Show Author Affiliations
M. Bongova, Technical Univ. Zvolen (Slovak Republic)
Stanislav Urgela, Technical Univ. Zvolen (Slovak Republic)


Published in SPIE Proceedings Vol. 3820:
11th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Miroslav Hrabovsky; Anton Strba; Waclaw Urbanczyk, Editor(s)

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