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中文摘要：
光谱发射率是材料重要的热物性参数之一,具有重要而广泛的应用需求。基于调制辐射源加热的光谱发射率测试方法能够实现材料高温光谱发射率和温度的同时测量,克服了传统测试对高温样品温度准确测量的依赖性。为研究和提高基于调制辐射源的光谱发射率测试方法的适用性,论文开展了测量反问题的数值模拟验证分析,研究分析了样品表面光谱发射率范围、温度范围和测量噪音等条件对光谱发射率测量不确定度的影响,并对光谱发射率反问题求解的数值不确定度与理论不确定度进行了定量评估。
英文摘要：
Spectral emissivity is an important thermophysical parameter with wide applications.The spectral emissivity measurement method based on modulated radiation source can simultaneously measure the directional spectral emissivity and the temperature of high temperature sample.The method avoids the need for accurate measurements of the sample surface temperature to determine the spectral emissivity.In order to improve the applicability of the method,the inverse problem was analyzed numerically and the factors that influence the uncertainty were analyzed,such as the spectral emissivity,the temperature and the noise level.The theoretical uncertainty was also evaluated quantitatively.
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