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Title: Wire-inhomogeneity detector

A device for uncovering imperfections in electrical conducting wire, particularly superconducting wire, by detecting variations in eddy currents. Eddy currents effect the magnetic field in a gap of an inductor, contained in a modified commercial ferrite core, through which the wire being tested is passed. A small increase or decrease in the amount of conductive material, such as copper, in a fixed cross section of wire will unbalance a bridge used to measure the impedance of the inductor, tripping a detector and sounding an alarm.
Authors:
; ;
Publication Date:
OSTI Identifier:
6006981
DOE Contract Number:
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; WIRES; EDDY CURRENT TESTING; ELECTRIC BRIDGES; SOLENOIDS; ELECTRIC COILS; ELECTRICAL EQUIPMENT; ELECTROMAGNETIC TESTING; EQUIPMENT; MATERIALS TESTING; NONDESTRUCTIVE TESTING; TESTING 420500* -- Engineering-- Materials Testing