A new ‘breakthrough’ inspection technology makes it possible to remotely scan and map areas of corrosion in inaccessible pipe walls for the first time.

QSR (Quantitative Short Range) - a new type of guided wave technology - can provide accurate measurements of pipe wall thickness in hard to reach areas such as behind wall supports. It is the latest innovation from Guided Ultrasonics Limited (GUL), whose CEO David Alleyne developed the original guided wave technique over 20 years ago as a student at Imperial College London.

David will be speaking about QSR at the Materials Testing 2017 exhibition in Telford on Wednesday, 6 September.

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The original long-range guided wave technology is now used worldwide, and provides a fast and cost-effective way to screen large sections of pipe to identify any locations showing changes. As guided waves can propagate tens of metres, it is possible to remotely inspect areas that would be very costly to test using other methods - for example, the buried sections of road crossings or insulated pipelines.

However where changes are detected, more detailed inspections are required to determine the extent of corrosion – and until now such accurate measurement has only been possible by removing obstacles and testing directly at the exact position on the pipe wall.

David, who founded GUL in 1999 as a university spin-out, said the company recognised the need for a way to measure wall thickness remotely. “Often the places you really need to measure are in positions that you can’t reach directly and up to now, there has been no technology available to do this. It is a major problem and all sorts of solutions have been proposed, but they can only give an estimate and are not a reliable way to measure thickness. QSR allows you to rapidly scan wall thickness and provides an accurate measurement.”

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As with the original long-range guided wave technique, David believes QSR will find wider applications than pipelines.

He adds: “Long-range guided wave technique was designed as a screening system for use with insulated pipes, however it is now widely used as a way to test buried pipes and for more general inspections. QSR has been developed as a scanning and mapping tool, with the areas behind pipe supports in mind, however it could be used to map any type of system corrosion. Like the long-wave technique, we believe it is a breakthrough technology and expect it will find much wider applications.”

Materials Testing 2017, the world’s most comprehensive exhibition of its type, takes place at the International Centre in Telford, West Midlands from 5-7 September and features a range of talks from industry speakers. David Alleyne will be speaking at 2pm on Wednesday 6 September.

For further information, visit the website at www.materialstesting.org

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Discover the latest in tube and pipeline inspection at Materials Testing 2017, which takes place from 5-7 September in Telford, UK.

The biennial event is the world’s most comprehensive exhibition of non-destructive testing (NDT), materials testing, condition monitoring and diagnostic technologies.

The show comes as new techniques such as the use of permanently installed sensors in pipelines and greater automation offer huge potential to improve efficiency and reduce maintenance costs.

Materials Testing 2017 promises to be the biggest and best exhibition to date, with over 70 exhibitors and a wide range of seminars covering the practical aspects of NDT and related technologies.

The biennial event is organised by the British Institute of Non-Destructive Testing (BINDT) and will run alongside its annual conference, NDT 2017, providing additional networking opportunities.

Paul Fidgeon, Chairman of the organising committee, said: “NDT plays a major role in ensuring the safe and efficient operation of plant and pipelines. Current trends include the increased use of permanently installed sensors in line with the move towards predictive maintenance, and greater automation.

“Materials Testing is the most comprehensive event of its type and allows NDT practitioners and end users alike to keep up to date with developments and hear from industry experts.”

The event, which is free to attend for registered visitors, takes place at the International Centre in Telford, West Midlands and is open from 9.30am to 4.30pm on Tuesday 5 and Wednesday 6 September and from 9.30am to 2.00pm on Thursday 7 September. The International Centre in Telford is less than one-and-a-half hours from Birmingham, Manchester and Liverpool international airports and only five minutes away from the UKrail and motorway networks.

For further information, visit the website at www.materialstesting.org