A single sensor is scanned circumferentially on the pipe to measure reflections up to 3m-10’ in front of the sensor. The technique is mainly used for detection of corrosion under supports (as a complement to the axial inspection technique), inspection of lamp posts, inspection of air-to-soil or air to cement interfaces or any area where the pipe or structure is not accessible.
- Non-Contact EMAT technique.
- Circumferential scanning provides axial inspection of the pipes.
- Complements circumferential scanning when the pipe is accessible.
- Different wave modes permit penetration under cement and any type of coating.
- Complements LRUT by providing accurate detection from 75mm (3”) to 3m (10’) in front of the sensor.
- Available for pipes up to 1” in thickness.
- Detects corrosion and pits as small as 1/10th of pipe thickness.