Calculation of the Intensity and Absorption of a Finite-Amplitude Sound Wave
Wednesday, March 9, 1988 1:00 p.m. Dr. David T. Blackstock Department of Mechanical Engineering Applied Research Laboratories and The University of Texas at Austin An operational definition of absorption α= -∇ ·I/2I, where I is the sound intensity, was popular in the 1950’s as a means of quantifying the increased attenuation of finite-amplitude ultrasonic beams.…