Multimode Virtual Source Aperture Imaging for Non-Destructive Testing Virtual source aperture (VSA) is a supplementary technique being developed at TWI ...
Influencing Parameters for Ultrasonic Inspection of Austenitic Welds TWI undertook a Core Research Programme project to generate informative data for ...
Thermographic Inspection of Metal Under Coating TWI conducted a feasibility study on detecting surface breaking defects in metallic ...