Comparative Analysis of Different Methods of Acoustic Beam Angle Measurement and Calculation of Directivity Patterns for Angle Piezoelectric Transducers

Results of applying the electromagnetic-acoustic multiple-shadow method to testing smalldiameter cylindrical objects with Rayleigh waves are presented. The possibility for using the spectral and probabilistic-statistical approaches to processing detected signals is demonstrated. The capabilities of the method are evaluated when revealing surface flaws of different types, orientations, and dimensions in various objects.