MAGNETIC CIRCUIT OF MAGNETIZING DEVICE Russian patent published in 2001 - IPC

FIELD: nondestructive testing of articles by magnetic method. SUBSTANCE: magnetic circuit consists of articulated cores; part of these cores has beveled ends at angle exceeding 20 deg. and lesser than 90 deg. relative to longitudinal axis. Cores have through central holes; they are interconnected by means of spring-loaded flexible rod passed through holes. Engageable surface have form of circle inscribed in area of rod section whose center lies in axis of rotation of cores. EFFECT: possibility of performing nondestructive testing of articles of different standard sizes without replacement of magnetic circuit and without changing its section. 6 cl, 6 dwg