摘要
非稳态法具有快速、准确的特点,一次测量可同时得到热导率、热扩散率和热容等多个热物性参数,测试范围可覆盖多种材料和较宽的热参数区间。阐述了目前国际上主要的六种非稳态测量方法及特点、测量原理及理论模型公式。
The transient methods have the virtues of being fast and apparently accurate, and can obtain the thermal conductivity, the thermal diffusivity and the heat capacity of the materials simultaneously just by one measurement, covering a wide rage of materials and thermal property values. Six types of transient methods predominantly used worldwide are introduced, their characteristics, measurement principles and the theoretical models or equations are described in detail.
出处
《宇航计测技术》
CSCD
2006年第4期23-30,共8页
Journal of Astronautic Metrology and Measurement
基金
国防科技重点实验室资助项目(项目编号:2005JS51469.0401.QT02.5)
关键词
导热性
热扩散系数
热物理性质
瞬态法
测量
Thermal conductivity Thermal diffusivity Thermophysical property Transient method Measurement
