Time-of-Flight Diffraction (TOFD) Probes for Crack Detection and Sizing
TOFD probes equipped with wedges generate refracted longitudinal waves in steel, utilizing the Time-of-Flight Diffraction (TOFD) technique to locate and siz e defects such as cracks.
When ultrasonic waves encounter defects or interfaces between different medium within a material, diffraction occurs, altering the wave's propagation path and time. By measuring the time difference between the transmission and reception of the ultrasonic waves, the location and size of the defect can be determined.
Advantages：
When paired with a wedge, the TOFD probe generates refracted longitudinal waves in the workpiece. Cracks and other flaws can be accurately sized through Time-of-Flight diffraction technique.
Product Features：
Equipped with composite element for high sensitivity and wide bandwidth YUSHI INSTRUMENTSYUSHI INSTRUMENTS
Longitudinal wave probe with high damping characteristics
It can significantly improve efficiency during weld scanning
Quick-release type wedge
Wedge includes water nozzle, slots on both sides, and wear-resistant pins on the bottom
Application：
Inspection of various types of welds in industries such as oil and gas, power g eneration, special equipment inspection, shipbuilding, nuclear power, and hea vy industry.
