Dos Santos, TG, Ramos PM, Dos Santos Vilaça P.  2008.  Non destructive testing of Friction Stir Welding: Comparison of planar eddy current probes, 2008. 16th IMEKO TC4 International Symposium on Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements; 13th International Workshop on ADC Modelling and Testing - IMEKO TC4 - TC21 Joint Session. :507-512., Florence