The main structure have:Electromagnet and Heng galvanism source, numerical type Gauss account(the effect of Huo Er) and ammeter and volt account, have control dish of illuminate the system.

电磁铁和恒流电源、数字式高斯计 （霍尔效应）、安培计和伏特计、配有照明系统控。

In this paper, we theoretically demonstrate the Gyrator is a kind of transmission element, and it has behaviour to gyrate impe-dandce.Finally, we find that the Gyrator is realized by Hall effect.

文从理论上论证回转器一种具有回转阻抗性能元件,可用霍尔效应实现回转器。