Patent ID: 6172501
Filing Date: 2001-01-09
Classification: G01B,G01N

Abstract:
An apparatus for measuring a degree of corrosion of a cable, comprising a magnetizing coil magnetizing an object cable whose degree of corrosion is to be measured, and a magnetic flux detecting coil detecting an amount of magnetic flux passing through the object cable which is magnetized by said magnetizing coil, wherein a degree of corrosion of the object cable is determined based on the amount of magnetic flux detected by said magnetic flux detecting coil, said apparatus further comprising:a magnetizer having a reel to be arranged so as to enclose a part of the object cable and separable into a plurality of reel portions, and means for coupling the plurality of reel portions to each other, wherein there is a space between an inside of said reel of said magnetizer and the object cable said reel of said magnetizer is rotatable with respect to the object cable, and said magnetizing coil is to be wound around said reel of said magnetizer; anda detecting coil device having a bobbin to be arranged so as to enclose the part of the object cable and separable into a plurality of bobbin portions, wherein said detecting coil device is provided around said bobbin, and said detecting coil device is to be disposed in said space inside said reel of said magnetizer so as to be fitted on the object cable.