| 摘要 |
PROBLEM TO BE SOLVED: To provide an eddy current flaw detection multi-coil probe and its manufacturing method for reducing an increase in a sensitivity fluctuation by reducing a lift-off fluctuation of flaw detection coils, and improving the inspection accuracy. SOLUTION: The eddy current flaw detection multi-coil probe 1 is provided with a plurality of the flaw detection coils having wound conductors, a holding section with a coating layer having a face 10a opposite to an inspected face and bringing the inspected face into contact with a coil holder 10 for accommodating the flaw detection coils in a state to direct end faces of the detection searching coils to the face 10a, and a housing 13 for supporting and relatively moving the coil holder 10 in at least one direction when a temperature changes. COPYRIGHT: (C)2006,JPO&NCIPI
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