以交流伏安法作为电感的测量手段,在保持线圈相对位置不变的前提下,对有无铁心的情况分别进行测量,对比研究了线圈不同连接方式下电感的变化规律,分析了铁心对电感的作用和影响。结果表明: 采用不同的连接方式，总回路中的电感值不同，四个线圈反串的连接方式是最合适的; 铁心对线圈的互感产生决定性影响，不同电流下的电感值不同。

The inductance of the coil with the core and without the core was measured by AC voltammetry keeping the same distance of the coil, the transformation of the inductance of the coil in the different connection modes was studied, and the influence of the core on the inductance was analyzed. The results showed that the inductance of general circuit was different in different connection modes, the connection mode of four coils connecting in series opposing was most suitable; the influence of the core on the mutual inductance was decisive, the inductance was different under different electric current.