Patent ID: 8970212
Filing Date: 2015-03-03
Classification: G01N

Abstract:
1. An eddy current probe comprising: a permanent magnet that generates a magnetic field in a predetermined direction; and a cross coil placed in the magnetic field generated by the permanent magnet, wherein the cross coil comprises a first coil and a second coil, the first coil and the second coil each comprise opposing portions designed to be opposed in parallel to a test object, a first direction is a direction in which the opposing portions of the first coil extend, a second direction is a direction in which the opposing portions of the second coil extend, a third direction is a direction in which the permanent magnet extends, an axial line extending in the first direction intersects an axial line extending in the third direction, and an axial line extending in the second direction intersects the axial line extending in the third direction.