Inspection of Buried Gas Pipeline Using Ultrasonic Guided Waves

Ultrasonic Guided Wave testing is now widely used for the inspection of buried pipelines. The principle, characteristics and application of the inspection were introduced. As an example, pipelines in gas station were tested on-site and the reliability of testing results was verified by excavation. A comparison result showed that the ultrasonic guided waves can make it reality to test on site quickly, and has wide prospect.