S. Schedin et al., TRANSIENT WAVE RESPONSE OF A CYMBAL USING DOUBLE-PULSED TV HOLOGRAPHY, The Journal of the Acoustical Society of America, 103(2), 1998, pp. 1217-1220
Using an electronic system for pulsed TV holography with a double-puls
ed ruby laser, transient wave propagation during intervals from 30 to
480 mu s after impact is recorded. The first observable bending waves,
having wavelengths of about 5 mm, propagate at about 1700 m/s, and re
ach the edge of the cymbal in about 60 mu s. These are quickly followe
d 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 phas
e unwrapping procedure is used to obtain a three-dimensional map of th
e wave field. Holographic film recordings similarly show scattering of
transient bending waves at the central dome. (C) 1998 Acoustical Soci
ety of America. [S0001-4966(98)01802-5].