The Hall zero-magnetic flux principle (ie. a closed-loop principle) is adopted to deduce the formula of the steady-state摘要采用霍尔检零原理（即闭环原理）推导出了霍尔检零系统的稳态误差表达式，得出了在霍尔检零系统中放大器的放大倍数越大稳态误差越小的结论。