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高温辐射仪是用于测定材料的高温半球向全发射率。材料的高温半球向全发射率是指材料辐射能量与同温度、同面积黑体辐射能量之比。发射率是宇航中热防护及热控制
High temperature radiometer is used to determine the material’s high temperature hemisphere to full emissivity. The material’s high-temperature hemisphere to full emissivity refers to the material radiation energy and the same temperature, the same area of black body radiation energy ratio. Emissivity is aerospace thermal protection and thermal control