Review of recent developments in ultrasonic NDT systems in the CEGB

Ultrasonic NDT is used extensively in the CEGB and, in recent years, demands for its wider application and for higher quality inspections have prompted considerable developments. Traditional ultrasonic inspection equipment can now be complemented by sophisticated analogue and digital devices which take advantage of modern electronics and computer technology. Developments in both data collection and data processing for ultrasonic NDT are critically reviewed and illustrated by a variety of systems and their uses.