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本文着重介绍两翼无限、不同磁化、不对称背斜形式的磁性层的磁场计算及其定量解释问题.一、理论公式1.平面磁荷的磁场.设有一二度的磁荷面AB(图1),在垂直其走向的剖面(方向为Ox)内,其倾角为α.在Ox轴方向上,α偏向水平面以下为正,反之为负.在剖面上任取一点P,距原点的距离为x.从P点到A、B的距离分别为T_A和T_B,T_A和T_B与过P点的Ox轴的垂线的夹角分别为φA和φB.在此剖面内,假设磁化强度J的有效磁倾角为i(从Ox轴正方向顺时针算起,并取正号),则面磁荷密度σ为:σ=Jn=Jsin(i-a) (1)在此条件下,以极座标形式给出的磁场公式
This paper focuses on the calculation of the magnetic field and its quantitative interpretation of the magnetic layer with infinite wings and different magnetization and asymmetric anticline.First, the theoretical formula 1. The magnetic field of the plane magnetic charge with a second degree of magnetic charge AB (Figure 1) in the vertical profile (direction Ox), the angle of inclination of α in the Ox axis direction, α bias below the horizontal plane is positive, and vice versa negative. Take a point in the cross section P, from the origin of the distance x. The distances from point P to A and B are T_A and T_B respectively, and the angles between T_A and T_B and the perpendicular to the Ox axis over point P are φA and φB, respectively. In this section, it is assumed that the magnetization J is valid The magnetic dip angle is i (calculated clockwise from the positive axis of Ox axis and taken as a positive sign), then the surface magnetic density σ is: σ = Jn = Jsin (ia) (1) Under this condition, Given the magnetic field formula