ADVANCED NON DESTRUCTIVE TEST (ANDT)
Time of Flight Diffraction Testing
TOFD inspection employs two longitudinal wave (L- wave) angle beam transducers arranged symmetrically opposite facing each other, straddling the weld or base material under test. One probe acts like a transmitter of ultrasonic energy while the other probe receives the ultrasound energy. Time of Flight Diffraction is now routinely used in a wide range of applications such as inspection of piping and pressure vessels. Defects are detected by the diffracted ultrasound wave occurring at the edges of defects.
- Precise defect sizing.
- High probability of defect detection.
- High speed weld inspection.
- High speed cladding surface corrosion screening.
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