粒状材料导热系数测量装置的改进及误差分析

Improvement on Heat Conductivity Measuring Equipment for Grain Material and Error Analysis

对于粒状保温材料导热系数的测量，利用稳态球体法测量原理，设计了3套测量装置，并对3种测量结果进行了误差分析。实验结果表明：实验操作灵活多样，实验数据精确可靠，实验效果形象直观。满足了科研测试和教学实验的基本要求。

By using steady globoid heat conductivity measuring method, three types of heat conductivity measuring equipments for grain material are designed, Error analysis for three measuring results have been made. Experiment results shown that the measuring operations of these equipments are flexible, the data obtained are reliable and accurate, the experiment results are displayed by a vivid manner, Subsequently the new measuring equipments are quite suitable for normal experimental research and instructional experiment.