INFLUENCE OF THE SIZE OF FLAT OBJECTS ON THE MEASUREMENTS OF MAGNETIC CHARACTERISTICS USING AN ATTACHABLE TRANSDUCER

The results of measurements of static magnetic characteristics using attachable transducers depend on the geometry of the test object and magnetic flux leakage, which requires additional study. The aim of the work was to analyze the influence of flat object dimensions and magnetic flux leakage on the results of measurements using attachable transducers. By the example of steel 3 specimens with different sizes, the change of static magnetic characteristics when varying the position of the transducer relative to the edge of the specimens was studied using the DIUS hardware and software system. The results revealed a paradoxical behavior: an increase in the maximum magnetic induction in the transducer was accompanied by a decrease in the field strength in the object, which is explained by the leakage of magnetic flux in the samples with a larger area. It was found that the edge effect and the geometry of the object significantly affect the measured parameters, including the coercive force by demagnetization current, which is used by most modern coercimeters. A possible way to solve this problem is to create regression models, including machine learning methods, to correct the influence of scattering and improve the accuracy of measurements in the conditions of varying the geometry of control objects