NONCONTACT ULTRASONIC CHECKING OF THE SURFACE DENSITY 
OF A LAYER OF A SOLID MEDIUM

A. I. Brazhnikov and N. I. Brazhnikov

UDC 620.179.16

Consideration has been given to the field structure in 
ultrasonic monitoring of gas-liquid flows and technological parameters 
and to the basic characteristics of noncontact checking of the surface 
density of a layer moving in a field produced by an acoustic radiator 
in air.

State Scientific-Research and Design Institute of the Rare-Metal 
Industry (GIREDMET), 5 B. Tolmachevskii Lane, Moscow, 109017, 
Russia. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 77, No. 
4, pp. 172-176, July-August, 2004. Original article submitted 
December 16, 2003.