The total hemisphere emissivity at 90 ℃ and the normal spectral reflectance at room temperature of C / SiC composites were measured by using steady-state calorimeter method and Fourier infrared spectrometer ( FTIR ) respectively .

利用稳态量热计法和傅里叶红外光谱仪分别测定了C/SiC复合材料在90℃时的半球 向 总 发射 率和室温法向光谱反射率。

An Instrument for Measuring Total Emissivity of Materials Between 300 and 1000 ℃

（300-1000）℃材料 法 向 全 波长 发射 率测量装置的研究

The Measurement of Total Thermal Emissivity of a Solid Surface

固体表面热 辐射 率（ 黑度）测定

The measurement of the total emissivity of a solid surface in the black cavity which is immersed in liquid nitrogen and under high vacuum ( 10-6 torr ) by steady caloric method is described .

本文提出了一个真空度为10~（-6）毫米汞柱，黑体腔四周浸泡在液氮中的固体的表面热 辐射 率的测定方法。

The influence of the degree of vacuum on the total emissivity is discussed .

本文还分析了不同真空度对 热 辐射 率的影响。

After 1h heating treatment in vacuum at 1600 ℃ the total hemisphere emissivity of C / SiC composites declined but SiC-C / SiC and polishing SiC-C / SiC increased remarkably .

真空1600℃保温1h热处理后，无涂层C/SiC的 总 发射 率有所降低；而SiC-C/SiC以及抛光SiC-C/SiC的半球 向 总 发射 率明显上升。

An apparatus for measuring the hemispherical total emissivity ε h of the coatings and metals in the range of 1000 K-1800 K is described . The measured results of the ε h of some high temperature coatings are given .

本文介绍了涂层及金属在1000K&1800K温度范围内的半球向 全 热 发射 率测定装置，给出了几种高温涂层的半球向全 热发射 率数据。

An apparatus for measuring the hemispherical total emissivity of the high temperature coatings and metals

高温涂层及金属的半球向 全 热 发射 率测定装置

The normal total emissivity and refractoriness are more than 0.9 and 1790 ℃ respectively .

其法向 全 发射 率和耐火度分别超过0.9和1790℃。

To a straight wall with air natural convection the real temperature and total emissivity of the surface and the cold ambient temperature could he measured by the infra-red systems mentioned above so that the total heat flow of that surface may be determined .

对于竖壁空气自然对流表面，用上述红外系统测量出该表面的真温度和 全 发射 率 值以及冷环境温度，便可确定出该表面的全热流。

It can be used not only for the on-line measurement of total heat flow but also for the simultaneous measurements of true temperature and emissivity .

用它不仅可以在线测量表面的 全热流，而且还可同时测出被测表面的真实温度和 发射 率。

The research on measurement of the total hemispherical emissivity

半球向 热 发射 率测定研究

Experimental research on total hemispherical emissivity of W and Ni in the range of 350 to 1000 K

钨和镍在 350&1000K内的半球向 全 发射 率的试验 测定