ABSTRACT
Inspection Codes........................................................................................215 3.8 Inspection with Airborne Ultrasonic Beams .........................................218 3.9 Liquid Content Determination in Tanks................................................218 3.10 Residual Stress Measurement..................................................................219 3.11 Summary .....................................................................................................220 References ............................................................................................. 220
Globally competitive industries need efficient, reliable, and accurate inspection methods. While all nondestructive evaluation (NDE) methods offer particular capabilities suitable for special needs, ultrasonics has wide-ranging capabilities and is most adaptable to automation and flaw characterization. Ultrasound is able to interrogate both the surface and interior of a part. Moreover, a wide variety of waves with various particle motions and frequencies give almost unbounded capabilities for ultrasound. Limitations of ultrasound often are based on the physical properties of the material being
inspected, the need for a physical couplant, and the training of the inspectors and supervisors. Suitable applications of ultrasound are very dependent on knowledgeable engineers and inspectors.
