A B-H tester, also known as a static magnetic properties (hysteresis loop) tester, is used to measure the magnetization characteristics of soft magnetic materials (such as silicon steel and ferrite) in a DC or slowly varying magnetic field. It primarily plots the hysteresis loop (B-H curve) to obtain key parameters such as saturation magnetic induction, remanence, coercivity, and permeability, thereby evaluating the material's magnetic properties.
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