FIELD: physics.
SUBSTANCE: during the movement of the following-stabilizing device, an alternating transverse magnetic field is created by pairwise placed permanent magnets with oppositely directed poles, the alternating magnetic field of which, when moving along the rail and crossing the transverse magnetic field of the rail, excites the eddy currents that create magnetic fields directed towards each other, and the resultant magnetic field, which does not depend on the movement speed. At least, two permanent magnets with parallel longitudinal magnetic axes and poles facing in opposite directions are fixed on each of the parallelogram pendulum suspension pendants of longitudinal rocking.
EFFECT: increasing the accuracy of measurements of the mobile flaw detector at high speeds of its movement.
2 cl, 4 dwg
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