EMAT is a transducer used to inspirit and receive testing signal

in order to get ultrasound signal with certain frequency and amplitude

it’s necessary to design rationally coil probe for improving testing efficiency.Hollow cylinder coil probe on the basis of introducing principle of RLC impulse excitation source is proposed.Effect of that kinds of coil parameters on inspiriting signal source and testing effect is analyzed particularly.Aiming at double function between inspiriting and energy conversion of probe

which provides theoretical and practical guidance for design of coil probe by RLC impulse exciting source.Probe coil and experimental testing system are designed according to analysis results

experiment proves the correctness of theoretical analysis.