自感实验是中学物理的一个重要演示实验,传统的电珠演示法虽然可以看到自感现象,但对自感的本质揭示得不够,有时还会使学生对自感形成错误的认识.笔者利用APPLE-Ⅱ微机,采用典型的通、断电自感演示电路,对自感暂态电流进行了采集,效果比较理 The self-inductance experiment is an important demonstration experiment in middle school physics. Although the traditional electric bead demonstration method can see the phenomenon of self-induction, it does not reveal enough about the nature of the self-inductance, and sometimes it makes students feel wrong about the self-inductance. APPLE-II microcomputer adopts the typical self-inductance demonstration circuit of power-on and power-off to collect the self-induction transient current.