GENERALIZED DEPENDENCE OF THE ACOUSTIC TRANSMITTANCE OF THE CONTACT LAYER OF INCLINED TRANSDUCERS ON THE STOCHASTIC SURFACE

The experimental data obtained for 30 types of different piezoelectric transducers were used to derive a generalized criteria of the acousti c transparencies of the contact layer linking the geometrical dimensio ns and the acoustic parameters of inclined piezoelectric transducers a nd the height parameter of roughness of the stochastic surface of the inspected component. An approximating equation, describing satisfactor ily the dependence of the transmission coefficient of ultrasound for t he contact layer of this criterion, is derived.