12th Annual NATL Conference

The first speaker was John Skidmore of Panametrics-NDT. He gave a paper on Ultrasonic ad Eddy Current Phased Arrays.

John Skidmore, Panametrics-NDT

John  discussed the many advantages offered by Ultrasonic Phased array and Eddy Current array technology - the most important being significant improvements in the probability of detection, reductions in inspection times and defect characterisation.  He went on to explain these new techniques and how they have been applied in industry.

    The next speaker was Stephen Lavender of Lavender International who gave   a   paper  entitled   'Certification  in  Advanced UT Methods  to SNT-TC-1A'.

Stephen Lavender, Lavender International.

Stephens presentation covers the work he has been involved with through the Institute’s Working Groups for Time of Flight Diffraction and Phased Arrays which have led to the development of Accredited Training Programmes and PCN and SNT examination modules being created.

The principles of Time of Flight Diffraction and Phased Arrays have been around for many years; only recently, however, has the processing speed of the computer caught up with the requirements of the software programmes to give acceptable presentations of results.  Add on to this the ASME VII Code 2235 which allows the use of advanced ultrasonics systems (such as TOFD) to be used in place of radiography, then the technology started to make its mark in industrial use.  With equipment manufacturers taking a key role in promoting the method, there came an increasing need for training and certification programmes.

Back in January of 2000, PCN’s General Technical committee was requested to put together an Examination Programme for Time of Flight Diffraction and a working group was set up comprising experts in this field.  A positive advantage for this document was the existence of BS 7706: 1993.

In early 2004 a similar situation arose with respect to Phased Array.

This lecture reviewed the rationale behind the two PCN products which have evolved from these Working Groups and propose how these may be adapted for use within an Employer’s Written Practice.

Stephens presentation is available by clicking this link.

Morning Coffee was then served in the Exhibition area.

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