TY - JOUR N2 - Due to the skin effect of eddy currents, the depth of cracks which can be detected by the traditional eddy current probe is very limited. In order to improve the ability of eddy current probes to inspect deep cracks in metal thick-walled structures, a new eddy current probe using an excitation system with phase shifted fields was proposed. Its feasibility for detecting deep cracks was verified by simulation and experiments. The results showed that the penetration depth of eddy currents in austenitic stainless steel is effectively enhanced by using the new probe. L1 - http://www.czasopisma.pan.pl/Content/116012/PDF/art05.pdf L2 - http://www.czasopisma.pan.pl/Content/116012 PY - 2020 IS - No 2 EP - 287 DO - 10.24425/mms.2020.132774 KW - skin effect KW - penetration depth KW - austenitic stainless steel KW - eddy current probe KW - phase shifted fields A1 - Wu, Meixian A1 - Zhang, Dongli A1 - Wang, Chuanglong PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation VL - vol. 27 DA - 2020.06.18 T1 - A novel deep penetrating eddy current probe based on phase shifted fields and its application to inspection of defects SP - 275 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/116012 T2 - Metrology and Measurement Systems ER -