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Guided Wave Ultrasonics (GWUT)

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Guided Wave Ultrasonics (GWUT) is a nondestructive examination technique that projects sound waves along pipe walls in order to detect corrosion or other damage. Guided wave ultrasonic testing is also sometimes referred to as long range ultrasonic testing (LRUT). This method is performed by placing a ring of transducers around a pipe. The sound waves emitted from these transducers travel down both directions of the pipe. If they come in contact with corrosion or damage they will be reflected back towards the transducers, which then collect the data automatically.

Guided wave ultrasonics is useful for examining a long length of pipe quickly and from a single location. This technique does not require contact with the pipe except for where the transducer ring is fitted. Guided wave ultrsonics is an effective techinique for inspecting pipes in difficult to reach locations, such as those in high locations, behind walls, or under insulation. In most cases however, this method is best used as a screening tool part of a larger inspection program.

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Articles about Guided Wave Ultrasonics (GWUT)
September/October 2018 Inspectioneering Journal

The challenge to find CUI is difficult and one single NDE technique cannot be used to identify it. This remains the case today as we combine NDE techniques to perform CUI assessments. The techniques and strategies commonly used today are summarized...

Blog

Nondestructive testing (NDT) careers are on the rise in today’s economy. These fields are constantly advancing, and there is an ever-growing need for technicians, quality assurance specialists and inspectors as infrastructure in the United States...

Authors: Berg Engineering
November/December 2016 Inspectioneering Journal

Beyond the financial hits, undetected degradation from corrosion can also lead to critical safety risks. To effectively manage mechanical integrity, organizations need reliable methods of identifying the current states of corrosion occurring within...

Authors: Adam Gardner
May/June 2015 Inspectioneering Journal

Verifying pipeline integrity is particularly challenging due to the difficulty of pipeline access, as well as the limitations in available technology to perform subsea wall thickness inspections. These challenges require action rather than reaction.

Partner Content

Pro-Surve recently invested in the latest portable Higher Order Modes Clusters (HOMC) Guided Wave Testing tool, a new concept for the inspection of inaccessible regions using short-range guided waves. Inspection is carried out from the accessible...

    Downloads & Resources related to Guided Wave Ultrasonics (GWUT)
      Asset Intelligence Report

      This Asset Intelligence Report on Ultrasonic Testing provides an introduction to the NDE method as well as further information on the various ultrasonic testing methods and industry applications.

      eBook

      This publication outlines 101 Essential Elements that need to be in place and functioning well in order to effectively and efficiently preserve and protect the reliability and integrity of pressure equipment (i.e. vessels, exchangers, furnaces,...

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