Measurements can be made with an infrared radiometer. Blackbody radiation at the same temperature of the object is obtained using a cylindrical direct reflection cavity.
测量中使用了红外辐射计，并用圆柱形镜反射腔获得温度同地物相同的黑体辐射，并由已知比辐射率的参考板标定环境辐射。
An intelligent calibration system with temperature of blackbody naturally varying used for small antenna MMW radiometer was developed.
研制了的小口径天线毫米波辐射计自然变温智能定标系统，该系统实现了所有数据的自动采集与分析。
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