摘要
在用霍尔元件测磁场时，一般采用对称测量法以消除各种附加电压的影响，当出现某种附加电压大于霍尔电压这种特殊情况时，该测量方法更为必要．
Symmetrical measurement is usually used to determine the magnetic intensity by Hall element in order to eliminate the effect of extra voltages.Such a method is especially necessary when one of the extra voltages exceeds the Hall voltage.
