A system which rapidly determines the elastic stiffness constants of materials in plate shape as well as characterize material flaws that are affecting these constants. Rapid (below a minute) nondestructive evaluation system allow for the determination of material stiffness constants, low noise data...http://www.google.com/patents/US6092421?utm_source=gb-gplus-sharePatent US6092421 - Ultrasonic system for automatic determination of material stiffness constants
