Ultrasonic System with Time of Flight Diffraction

Ultrasonic system with Time-of-flight diffraction (TOFD) is a technique that uses two probes in pitch-catch mode and detects and records signals diffracted from defect tips allowing both detection and sizing. The TOFD data is displayed in a gray scale B-scan view. TOFD offers wide coverage and amplitude-independent sizing complying with the ASME 2235 code.
•One-line scan for full-volume inspection
•Setup independent of weld configuration
•Very sensitive to all kinds of defects and unaffected by defect orientation