Eddy current probe
AssigneeMitsubishi Heavy Industries, Ltd.
InventorMasaaki Kurokawa
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Abstract
An eddy current probe 1 in accordance with the present invention has a structure in which a cross coil 7 is placed in a predetermined direction relative to permanent magnets 3 and 5 in the following manner. When the probe 1 is erected, the coil 7 is placed between the magnets 3 and 5 so that a direction CD in which the opposing portion 9a (9c) of the first coil 9 is extended intersects with a direction MD in which the magnets 3 and 5 are extended. In the same manner, when the probe 1 is erected, the coil 7 is placed between the magnets 3 and 5 so that a direction CD in which the opposing portion 11a (11c) of the second coil 11 is extended intersects with the direction MD in which the magnets 3 and 5 are extended.
Claims4
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 a direction of an electric current flowing through the excited cross coil and a direction of the magnetic field generated by the permanent magnet intersect with each other.
Dependencies are inferred from the claim text.