Guided Wave Ultrasonics

Guide Wave Ultrasonic Testing has been identified as an effective pipe-screening technology capable of detecting, locating, and classifying corrosion defects. The technique enables volumetric screening of pipes, which covers 100% of the cross-sectional area of the pipes within the diagnostic length of the test. In most cases, tens of meters can be screened from a single test position, making it a rapid and cost-effective non-destructive testing (NDT) method. Additionally, access to the pipe under test is only required at the test position (remote inspection), which makes Guided Wave screening technology an ideal solution for inspecting pipes that are costly to inspect using other methods, for example, buried sections of road crossings or insulated pipelines.

The Wavemaker Pipe Screening System is a screening method that utilizes ultrasound. A probe ring is placed around the pipe and transmits guided waves through the pipe in either direction of the probe ring. The pulse echo type operation provides information on features and/or different types of defects at their positions and severity. The guided wave testing can be either performed as a single inspection or repeated inspections from the same location, which can be used for monitoring purposes (gPIMS® Monitoring)