What Does Guided Wave Testing (GWT) Mean?
Guided wave testing (GWT) refers to a corrosion detection method that uses ultrasonic acoustic signals to search for corrosion-induced damage along the length of a metallic surface such as a pipeline.
Guided wave testing (GWT) refers to a corrosion detection method that uses ultrasonic acoustic signals to search for corrosion-induced damage along the length of a metallic surface such as a pipeline.
Guided wave testing (GWT) is nondestructive in the nature of its application. It can be used to inspect significant lengths of metallic pipelines. GWT is conducted by the use of a transducer ring, which is clamped onto the pipeline. Pulsed signals are then introduced, which travel in both directions along the pipeline.
Ultimately, reflected signals from corrosion-induced defects and pipeline features such as welds, bolts and holes are received by the transducer ring and the data is collected and recorded.
Synonyms
Guided Wave Ultrasonic Testing