Transient wave response of a cymbal using double-pulsed TV holography
作者:
Staffan Schedin,
Per O. Gren,
Thomas D. Rossing,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1998)
卷期:
Volume 103,
issue 2
页码: 1217-1220
ISSN:0001-4966
年代: 1998
DOI:10.1121/1.421254
出版商: Acoustical Society of America
数据来源: AIP
摘要:
Using an electronic system for pulsed TV holography with a double-pulsed ruby laser, transient wave propagation during intervals from 30 to 480 μs after impact is recorded. The first observable bending waves, having wavelengths of about 5 mm, propagate at about 1700 m/s, and reach the edge of the cymbal in about 60 μs. These are quickly followed by waves of longer wavelength which scatter at the outer edge of the cymbal and also the central dome and result in standing waves. A phase unwrapping procedure is used to obtain a three-dimensional map of the wave field. Holographic film recordings similarly show scattering of transient bending waves at the central dome.
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