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在国际温标中,温度固定点的精确测量是其最基本的技术要素,在精确测量固定点热力学温度的诸方法中,辐射法即定点辐射系统是一个准确度很高,复现性非常好的辐射温度,热辐射功率及光辐照度的高水平标定和校准系统,在对标准光电高温计的校验和标定、传递温度量值,光辐照度的高水平传递以及黑体发射率的精确测定等方面已获广泛应用。因而,近几十年来已成为该领域研究的前沿和热点之一,在国际温标界受到越来越大的重视。 定点辐射系统的核心科学问题是金属固
In the international temperature scale, the accurate measurement of the temperature fixed point is the most basic technical factor. In the methods of accurately measuring the thermodynamic temperature of the fixed point, the radiation method, that is, the fixed point radiation system is a highly accurate and reproducible method Radiation temperature, thermal radiation power and light irradiance of high-level calibration and calibration system, the calibration and calibration of the standard photoelectric pyrometer, the transfer of temperature values, the high level of light irradiance transfer and the accuracy of black body emissivity Determination and so has been widely used. Therefore, in recent decades has become one of the frontiers and hot spots in the field of research in the field of international temperature is more and more attention. The core scientific issue of the fixed-point radiation system is metal