Part of a suite of non-destructive evaluation technologies, conventional shear wave ultrasound is used to detect and size planar (crack and crack-like) anomalies in pipe walls. The technique involves introducing ultrasonic beams into the test area at an angle, which allows detection of abnormalities based on the reflection and refraction of the beam.
Best used for: detecting and sizing planar anomalies, which are perpendicular to the pipe wall
- Proven technology used in oil, gas, and industrial applications for more than 50 years.
- Locates defects that aren’t parallel to the pipe wall.
- What tools are employed to perform conventional shear wave testing? TDW technicians use an ultrasonic (UT) flaw detector, along with a variety of transducers and wedges, to test a wide range of pipe wall thicknesses and anomaly types.
- Why is angled-beam technology used instead of straight-beam? Straight-beam testing will likely miss planar anomalies, particularly vertical, thin defects that cannot reflect enough sound back to the transducer to be detected.