ROTATING EDDY CURRENT TEST PROBE

摘要

Provided is a rotating eddy current test probe having a plurality of ?-type eddy current test probes attached to a rotating disc and capable of detecting flaws oriented all directions regardless of the directions of the flaws. The four ?-type eddy current test probes (P11 to P22) are disposed around the rotation center (Ds1) of a rotating disc (111) and are buried in the rotating disc (111). The coil surfaces of the detection coils (Dc11 to Dc22) of these eddy current test probes (P11 to P22) are disposed in parallel with each other and perpendicular to the rotating surface of the rotating disc (111). The coil surfaces of the detection coils are tilted by ? with respect to the line (Y1) passing by the centers (Ps11, Ps12) of the eddy current test probes (P11, P12). The detection coils (Dc11, Dc12) are cumulatively connected and the detection coils (Dc21, Dc22) are differentially connected.