Russell Nde Systems Inc.

Hoan Nguyen

David E Russell

Yuwu Yu

Daniel Lingnau

Ellen Jin

Brian Thai

Ankit Vajpayee

A probeincludes exciter unitsarranged in an array and detector unitsand, also arranged in arrays, with the arrays positioned proximal to and in the shape of the exterior circumference of an individual boiler tube. The detector unitsare 'absolute' coil detectors which are used to detect and quantify general wall loss, for example, resulting from steam impingement erosion. The detectorsare differential, axial pairs which are used for detecting pits in the boiler tubers. The exciter units and detector units are mounted in a stainless steel housingof the probe. The housingis shaped to closely match the contour of the boiler tube. The probe can be moved along the boiler tubes by hand to inspect the flame side of boiler tubes, one at a time. Wheelsare provided to roll the probe along the boiler tubes.

Apparatus and method of detecting defects in boiler tubes

A probe including a plurality of links connected together in series, wherein the plurality of links create a flexible compartment containing at least a first and second exciter means and at least one pair of detector means, wherein the exciter means are driven by an alternating current to produce an alternating magnetic field, and the detector means are configured to detect the magnetic field of an induced eddy current caused by the exciter means magnetic field.

Method and apparatus for the detection of corrosion under insulation (CUI), corrosion under fireproofing (CUF), and far side corrosion on carbon steel piping and plates

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Edmonton, Canada

Hoan Nguyen