中文摘要：

基于窄波段内普适性的线性发射率模型,将三波长（单色）辐射温度测量拓展到谱段辐射温度测量。在谱段测量中,为实现非失真的有效测量,文中结合传感器的动态范围及最低灵敏度等特性参数,考虑多路信号的耦合关系,讨论了有效温度测量的相应限制条件。从而针对具有已知辐射物性的被测物体,通过数值模拟给出谱段测温的有效测温范围相对于传感器的波段带宽的变化趋势。理论上明确了实现有效温度范围测量对传感器的波段带宽的要求。文章分析将为辐射传感器的设计提供必要的理论指导。

英文摘要：

In the present paper, based on the linearity spectral emissivity model with two parameters in the narrow investigated waveband, we extend tri-wavelength pyrometry to tri-band pyrometry through waveband measurements of radiation temperature. In tri-band pyrometry, in order to realize the non-distortion measurement, considering the effect of the dynamic range and the minimum sensibility of the sensor on the coupling relation of multi-channel signals, the restriction condition of the effective temperature measurement range is discussed. However, under the assumption of the fixed sensor parameters, the measurement bandwidth of the sensor is an important influencing factor to the effective temperature measurement range in applications of tri-band pyrometry. Then for the measured objects with the known radiation characteristics, the variation of the effective temperature measurement range with the bandwidth of the sensor is presented through numerical simulations. So the required condition of bandwidth of the sensor is theoretically determined through the above discussions of the effective temperature measurement range. The analyses in this paper may provide the necessary theoretical guides to the design of the sensor of radiation temperature measurement.