DC Saturation Eddy Current Testing (MAG-WAVE)
TesTex has also added the ability to inspect ferrous metals with the introduction of the Mag-Wave technique.
Brief about Technique:
Any eddy current is defined as a circulating electrical current induced in a conducting tube by an alternating magnetic field. As the magnetic field alternates, so does the eddy current (reverses). This eddy current flow is limited to the area of the inducing magnetic field. Figure # 1 illustrates a typical eddy current induced in an tube by the probe. Note that eddy current travel parellel to the tube. This Technique is used for Ferrous and Duplex Material. As the Permability of Ferrous material is much high, so to De-Magnetise the area, the Mag-Wave Probe consists the two electromagnets.
