Yoon H W, Khromchenko V B, Eppeldauer G P, Gibson C E, Woodward J T, Shaw P S, Lykke K R
National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, USA
National Institute of Standards and Technology (NIST), 100 Bureau Drive, Gaithersburg, MD 20899, USA.
Philos Trans A Math Phys Eng Sci. 2016 Mar 28;374(2064):20150045. doi: 10.1098/rsta.2015.0045.
We describe the design, construction, calibration and use of a near-infrared thermodynamic radiation thermometer to measure blackbodies from 400 K to 1300 K. The motivation for this work is the pending redefinition of the kelvin and the need for direct, thermodynamic temperature measurements of the fixed-point blackbodies presently used in the realization of the temperature scale. The challenges of accurately measuring Planck radiances which vary greatly in radiance level and spectral shape are discussed. Methods to characterize the components used in the radiation thermometer design are described. The use of this radiation thermometer as a relative primary thermometer and the resulting residuals are shown. We describe radiometric calibration procedures for using the radiation thermometer as an absolute primary thermometer. Preliminary data showing the initial radiometric calibration steps are discussed.
我们描述了一种近红外热力学辐射温度计的设计、构造、校准及使用方法，该温度计用于测量400 K至1300 K的黑体。开展这项工作的动机在于开尔文即将重新定义，以及对当前用于实现温标的定点黑体进行直接热力学温度测量的需求。文中讨论了精确测量普朗克辐射率所面临的挑战，这些辐射率在辐射水平和光谱形状上差异极大。描述了表征辐射温度计设计中所用组件的方法。展示了该辐射温度计作为相对原级温度计的使用情况及所得残差。我们描述了将辐射温度计用作绝对原级温度计时的辐射校准程序。讨论了显示初始辐射校准步骤的初步数据。
