1 3 D characterization of defects in Guided Wave monitoring of pipework using a magnetostrictive sensor

In this paper a new method is described that allows estimating the 3d shape of defects identified in guided wave signals that were acquired with a magnetostrictive type sensor. The method is based on the evaluation of flexural components extracted from data sets acquired by a multitude of sensors distributed around the pipe circumference in a “collar” type configuration. In addition, to prove its efficiency, the method will be applied to a large number of simulated data and will finally be tested on signals acquired experimentally on real pipes with artificial defects.