【摘要】 提出了一种将多光谱测温法和积分球反射法相结合的脉冲加热技术测量材料热物性的新方法 .基于积分球反射法 ,利用多光谱测温法获得材料在多个光谱下的辐射信息 ,可同时获得试样在多个光谱下的法向光谱发射率 .介绍了利用该方法的脉冲加热瞬态热物性测量装置的各组成部分及其工作原理 ,该装置能同时测量带状试样的比热、电阻率、全波长半球发射率及多个光谱下的法向光谱发射率更多还原

【Abstract】 A millisecond pulse heating reflectometric technique with multi wavelength pyrometry to measure the thermophysical properties of a strip specimen was developed. The multi wavelength normal spectral emi ssivity of the strip were measured by a multi wavelength pyrometer and an integrating reflectometer. The measurement technique and components of the milliecond pulse heating apparatus are described. The heat capacity, electrical resistivity, total hemispherical emissivity and multi wavelength spectral emissivity of the specimen can be measured simultaneously by using this apparatus.更多还原