Introduction to Remanence
The symbol of Remanence is Br, which means that after the magnet is magnetized to saturation, the external magnetic field is removed, and a certain degree of magnetization can still be maintained in the original direction of the external magnetic field. The limit value of remanence is the saturation magnetization. The remanence of permanent magnetic materials is mainly affected by the orientation of each crystal grain and the magnetic domain structure in the material.