Abstract:

Theoretical models [B. Hartmann, J. Acoust. Soc. Am. 65, 1392--1396 (1979), B. Frank and J. D. N. Cheeke, J. Acoust. Soc. Am. 101, 1184--1186 (1997)] predict that the variation of B/A, the acoustical nonlinearity parameter, with the inverse sound speed 1/c, should be linear or linear with a quadratic term. Confirmation of these models requires experimental data for B/A vs 1/c for individual liquids. Such data will be presented for several liquids including pure water, seawater, mercury, and a number of organic liquids.