采用自制的网络电阻测试装置及单片机数采系统，试验研究了细粒子流化床内的电阻分布特性；建立了一个描述料层空隙率分布的更接近于工程实际的εＨ模型。同时，提出了表述空隙率ε、碰撞频率ｆ与流化风速Ｖ关系的ε与ｆＶ推理模型。 The self-made network resistance test equipment and single-chip digital acquisition system were used to test the resistance distribution in the fine particle fluidized bed. A ε H model was established to describe the porosity distribution of the material layer more closely to engineering practice. At the same time, the ε and fV inference models that describe the relationship between void ε, collision frequency f and fluidized velocity V are proposed.