本文提出了一种新型的粉末导热系数分组实验装置,弥补了大学热传导实验中所缺部分。该装置结构简单,物理概念明确,并且任何学校都能自制。利用该实验装置,不但能测出粉末热传导系数与温度的关系,并且还可求出在不同温度下粉末材料的密度与热传导系数的关系曲线,可进一步加深学生对粉末材料表观热传导性质的理解。 In this paper, a new type of experimental device for powder thermal conductivity grouping is proposed to make up for the missing part of the university heat conduction experiment. The device has a simple structure, a clear physical concept and is self-made at any school. The experimental device can not only measure the relationship between the powder thermal conductivity and the temperature, but also obtain the relationship between the density and the thermal conductivity of the powder material at different temperatures, so as to further deepen the students’ understanding of the apparent thermal conductivity of the powder material .