FIELD: non-destructive pipes control technology.
SUBSTANCE: device has magnetic system made in form of two magnetic circuits, sensors matrix. Into inter-polar space of inner circuit an additional magnet is placed in such a way, that its magnetic flow is directed oppositely to magnetic dispersed flow of inner circuit. Magnetic flow of additional magnet equals magnetic dispersed flow of inner circuit.
EFFECT: higher reliability, higher sensitivity.
2 dwg
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