摘要
本文针对热学参数热扩散与热导率容易引起混淆，从理论和实验两方面阐明热扩散率的物理意义，从而正确区分热扩散率与热导率．并给出了利用光热效应测量热扩散率的方案．
In this paper, to distinguish thermal diffusivity from thermal conductivity,we interpret theoretically and experimentally the thermal diffusivity.The designed experimental schematic for the photothermal displacement measurement by using Michelson interferometer is presented too.
出处
《常熟高专学报》
2000年第2期42-45,共4页
Journal of Changshu College
关键词
热扩散率
热导率
热学参数
光热效应
thermal diffusivity
thermal conductivity
carrier
photothermal displacement
