After introducing three types of spinning rotor pressure gauge and Morrison's wide range reference-transfer calibration method, theoretical analysis of enhancing calibration accuracy by substituting the spinning rotor gauge for Mcleod gauge as standard gauge of reference transfer system is given. 本文介绍三种磁悬浮转子(或转盘)真空规之后,对这种真空规的精度作了分析,并探讨了应用于参考传递校准系统的工作原理和结构。