This material gives the description of the physical processes involved in the propagation of ultrasonic pressure waves as they pass through a material. It includes a mathematical derivation of the amplitude of the transmitted and reflected pressure waves, and an explanation is given for the differences between the near and far zones. This material has been used in the Advanced Inspection Methods and Techniques module as part of the BSc programme in Non-Destructive Testing at the University of Northampton.
Published: School of Science and Technology, University of Northampton
Keywords: UKOER, Ultrasonic waves, Inspection and testing, Non-destructive testing