ToFD
Time of Flight Diffraction
Precision observation of indications in a fast and simple manner
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What is ToFD?
Time-of-Flight Diffraction (TOFD) is an advanced ultrasonic testing technique used to detect and size flaws, particularly cracks, in welds and other materials. It works by measuring the time it takes for ultrasonic waves to travel to and from the tips of a flaw, rather than relying on reflected amplitude like conventional ultrasonic methods.
This allows for accurate sizing of defects, including height and depth, making it a valuable tool for assessing structural integrity.
Advantages
- Suitable for wide range of materials
- Suitable for complex test piece geometries
- Applicable on material thicknesses from 3,2 mm and upwards
- On stream inspection up to 400°C
- No harmful ionising radiation
- Inspection data represented visually
- Direct interpretation of results
- Inspection data available in digital format
- Precision measurements about indication propagation and position
- No need to interrupt production
- Can be used in conjunction with PAUT
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