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Na Zhang published “Eddy Current Probe with Three-Phase Excitation and Integrated Array TMR Sensors” on IEEE Transactions on Industrial Electronics

Release time:2020-08-15
Na Zhang, Chaofeng Ye, Lei Peng and Yu Tao published “Eddy Current Probe with Three-Phase Excitation and Integrated Array TMR Sensors” on IEEE Transactions on Industrial Electronics in April, 2020. This paper proposed an eddy current testing probe with coils carrying three-phase currents as excitation and integrated array tunnel magnetoresistance (TMR) sensors measuring the magnetic field as receiver. Experiment results show that the probe has comparable sensitivity for horizontal and vertical defects, and it can recognize a small defect with length*width*depth=1*0.2*1 mm3. The defects are located within 1 mm with an artificial neural network.