Investigation on hyseresis influence of defection at magnetographic control on type of signal on magnetic tape
Dependence of a kind of the signals caused by defects in ferromagnetic objects, on character of preliminary preparation of a magnetic tape, type of defect, its depth and features of magnetization of object is investigated at the control. Conditions at which there is a change of polarity of the signal caused by defect are established, at record of fields of defects on a magnetic tape, preliminary magnetized not before saturation and before saturation.