THE MAGNETIC-FIELD OF A DEFECT SLOPED TO THE SURFACE OF A PART

The magnetostatic field of a crevice-type defect sloped to the surface of the the part with uniform and nonuniform distribution of the magne tic polarization charges along its boundaries is calculated. The equat ions for the tangential and normal constituents of the field in relati on to the angle of slope of the plane of the defect relative to the no rmal to the surface are analyzed. A comparison of the calculated data with the experimental showed that taking into consideration the nonuni formity of distribution of the charges along the faces provides better agreement with the experimental data than the model of uniform polari zation. It is shown that under otherwise similar conditions the amount s of the normal and tangential constituents of the field are practical ly independent of the angle of slope of the plane of the defect.