Developments in Guided Wave Testing of Pipelines for Integrity Assessment

Inspection with ultrasonic guided waves (UGWs) has become an established technology for the rapid screening of pipes and pipelines for in-service degradation. This paper describes developments taking place at TWI and its affiliates to enhance the capabilities of guided wave testing for the benefit of the pipeline and process industries. Three distinct areas of work are covered: the use of flexible transducers, increasing inspection range in coated pipes and the sizing of defects.

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