FERROMAGNETIC EDDY CURRENT PROBE HAVING ECCENTRIC MAGNETIZATION

摘要

TITLE FERROMAGNETIC EDDY CURRENT PROBE HAVING ECCENTRIC MAGNETIZATION INVENTORS Valentino S. Cecco Jon R. Carter Eddy current probes for ferromagnetic tubes of relatively small diameters are disclosed. The magnetization means are designed for each of a plurality of eddy current measuring coils to produce an area of the highest sensitivity in the circumference for each coil. The areas of the highest sensitivity are displaced angularly about the axis of the probe so that concentric anomalies can be distinguished from localized defects.