Diffraction attenuation of the ultrasonic ray of the cylindrical waveguide created by the end face
Authors:
Abstract:
The calculation of diffraction attenuation of an ultrasonic ray in «a piston radiator — a cylindrical waveguide — the investigated environment» system is carried out. It is shown that spatial dispersion presence in an acoustic waveguide leads to the considerable oscillations of diffraction attenuation unlike a field of a piston radiator and also to origin of areas with the negative value of diffraction attenuation.