| 双通道热红外标准辐亮度计定标方法研究 |
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| 引用本文： | 谢臣瑜,李健军,庞伟伟,夏茂鹏,郑小兵. 双通道热红外标准辐亮度计定标方法研究[J]. 红外与激光工程, 2018, 47(4): 404002-0404002(7). DOI: 10.3788/IRLA201847.0404002 |
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| 作者姓名： | 谢臣瑜 李健军 庞伟伟 夏茂鹏 郑小兵 |
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| 作者单位： | 1.中国科学院安徽光学精密机械研究所 通用光学定标与表征技术重点实验室,安徽 合肥 230031; |
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| 基金项目： | 国家自然科学基金（11204318，61275173）;国家高技术研究发展计划（2015AA123702） |
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| 摘 要： | 黑体辐射源作为初级标准，其辐射特性的测量精度决定了整个标准传递链路的不确定度。为了提高黑体的辐亮度测量精度，研制了一台可直接观测黑体辐亮度的双通道热红外标准辐亮度计。根据仪器的工作原理，采用自行研制的高精度水浴黑体获取标准辐亮度计的定标系数。实验结果表明，该辐亮度计的1 h信号非稳定性优于0.3%，定标系数拟合不确定度优于1.23%，5 m通道整体不确定度为0.39%，10 m通道整体不确定度为1.3%。可实现黑体辐亮度与实验室辐射标准之间的传递。
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| 关 键 词： | 黑体辐射 热红外 红外辐亮度计 定标 |
| 收稿时间： | 2017-11-10 |
Reseach on calibration method of double-channel thermal-infrared standard radiometer |
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| Affiliation: | 1.Key Laboratory of Optical Calibration and Characterization,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;2.University of Science and Technology of China,Hefei 230026,China |
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| Abstract: | Blackbody radiation source as a primary standard, its measurement accuracy determines the uncertainty level of the whole traceability link. To improve the measurement accuracy of blackbodies' radiance, a double-channel thermal-infrared standard radiometer was developed. According to the principle of the instrument, calibration coefficients of the standard radiometer were obtained by using a high accuracy water-bath blackbody. Experimental results suggest that the radiometer's instability is less than 0.3% within one hour, uncertainty of fitting coefficient is less than 1.23%, and combined uncertainty is less than 0.39%, 1.3% in 5 m and 10 m channel respectively. This radiometer provides new means for tracing blackbody radiance directly to radiant standard in lab. |
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