Determination of the acoustic pressure in a liquid from the parameters of passing laser radiation

Using a mathematical model of the propagation of a laser beam in an acoustic field, the distortions of the envelopes of the beam intensity due to refractive convergence and divergence of the rays in the beam are calculated. Experimental equipment is constructed and measurements of the acoustic pressure in a liquid are made. The experimental results obtained agree with the theoretical conclusions. __________ Translated from Izmeritel’naya Tekhnika, No. 6, pp. 53–55, June, 2006.