Eddy Current Transducer Dedicated for Sigma Phase Evaluation in Duplex Stainless Steel

Figure 1

Views of the transducer: (a) three-dimensional view, (b) cross-section view, (c) view with dimensions (all given in mm); 1: excitation coil, 2: main section pick-up coil, 3:reference section pick-up coil; 4: ferrite core; 5: testing sample; 6: reference sample.

(a)

(b)

(c)