脉冲数字电路中常用的脉冲变压器,通常采用具有非矩形磁滞迴线的铁氧体磁环作为磁芯。这种磁芯的重要参数之一,就是脉冲导磁率。在许多情况下,例如,在数字电子计算机中,需要大量的脉冲变压器,它不仅要求知道脉冲导磁率μ_Λ,更重要的是要求磁芯性能的一致。这就有必要对μ_Λ进行测试并按其大小进行分类。 Pulse pulse transformer commonly used in digital circuits, usually with non-rectangular magnetic hysteresis ferrite ring as the core. One of the important parameters of this kind of magnetic core is the pulse magnetic permeability. In many cases, for example, in digital computers, a large number of pulse transformers are required, which not only requires knowledge of the pulse permeability μ_Λ, but more importantly the consistency of the core performance. This makes it necessary to test μ_Λ and sort it by its size.