| 摘要 |
A flux scanner head generates a unidirectional magnetic field external to the head adjacent a scanning surface thereof. Workpieces to be subjected to magnetic particle inspection may be successively passed through, held in, or otherwise associated with, the unidirectional field at different angles to achieve magnetization along multiple axes, without physical or electrical contact with the workpiece. The scanner head is usable with both residual and continuous methods of magnetic particle inspection, and as either a hand-held or fixed-mount system. The scanner head itself incorporates a coil having a plurality of turns with a ferromagnetic core separating such turns so as to intensify and direct outward and external to the surface of the scanner head the magnetic field generated by current flow through the coil.
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