EDDY CURRENT TRANSDUCER FOR FLAW DETECTION Russian patent published in 2024 - IPC G01N27/90 

FIELD: measurement; non-destructive testing.

SUBSTANCE: invention relates to non-destructive testing and can be used for flaw detection of electroconductive objects. Essence: first measuring system 3 is intended for registration of eddy current signals U_x determined by the axial component of the magnetic field of the defect. First measuring system 3 is located above the plane of turns of exciting coil 1 on the side opposite to the working end face 6 of the converter, symmetrically relative to its centre in a plane perpendicular to opposite sides 1.1, 1.2 of turns of rectangular exciting coil 1. Second measuring system is intended for registration of eddy current signals U_y determined by tangential component of the defect magnetic field. Second measuring system consists of two series-oppositely connected identical inductance coils 4.1 and 4.2, arranged symmetrically relative to exciting coils 1, 2 with axial clearance along axis 8, located symmetrically relative to exciting coils 1, 2 and parallel to planes of coils of first measuring system 3.

EFFECT: higher validity of control.

1 cl, 11 dwg