FLAW DETECTOR OF STEEL STRAND ROPES Russian patent published in 2013 - IPC G01N27/82 

FIELD: testing equipment.

SUBSTANCE: flaw detector comprises a channel 1 for stretching of a controlled rope 2, a magnetising unit 3 with magnetic poles 4 and 5, facing the channel 2, a unit of measuring magnetosensitive elements 6, arranged between magnetic poles 4 and 5, a unit of signal processing 7. The flaw detector is also equipped with three additional magnetosensitive elements 8, 9, 10 and a unit of pulse registration 11, connected by its inputs with each of the additional magnetosensitive elements 8, 9, 10, arranged between magnetic poles on one line, parallel to the axis of the channel above its external surface. Magnetosensitive elements 8, 9, 10 are arranged as capable of distance adjustment between them. Previously the distances between adjacent additional magnetosensitive elements 8, 9, 10 are selected so that in the sum they do not exceed half of the distance between tops of adjacent strands along the axis of the controlled rope.

EFFECT: increased accuracy of detection of defect coordinates, found in flaw detection of strand steel ropes.

2 cl, 1 dwg