大气与环境光学学报, 2019, 14 (4): 241, 网络出版: 2019-08-13   

分光谱型天空背景辐射计的研制

Development of Spectral Radiance Measurement System for Sky Background
作者单位
1 中国科学院安徽光学精密机械研究所中国科学院大气光学重点实验室 安徽 合肥 230031
2 中国科学技术大学, 安徽 合肥 230026
摘要
为满足对天空背景辐射进行实时光谱测量和特征提取的需求,基于光纤光谱仪研制了一台一体化天 空背景辐射计,可测量340~1030 nm波长范围内的天空背景辐射光谱,波长分辨率优于0.5 nm, 具有定点测量、全天空扫描测量两种工作模式。在介绍系统总体结构的基础上,描述了光学组件、 转台系统、跟踪模块、嵌入式控制系统及恒温控制模块等硬件部件的结构,以及上位机软件的 设计思路、设备工作流程和定标方式。最后分析经光谱辐射定标后的测量数据,初步验证设备 工作的可靠性,为天空背景辐射的实时测量及光谱特性研究提供了有效手段。
Abstract
To meet the requirement of real-time spectral measurements and feature extraction of sky background radiance, a measuring instrument for spectral radiance of sky background was developed based on fiber optical spectrometer, to acquire spectrum from the wavelength of 340 nm to 1030 nm, which could both operate at fixed direction mode and whole sky scanning mode. Besides the overall structure, the details of optical component, rotating system, sun tracing module, temperature maintain system, software design, working process and calibration method were also presented. The calibrated test results were analyzed to prove the instruments’ reliability, and shows that it provided a way for real-time spectral measurements of sky background radiance.
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陈舜平, 孙凤萤, 徐文清, 魏合理. 分光谱型天空背景辐射计的研制[J]. 大气与环境光学学报, 2019, 14(4): 241. CHEN Shunping, SUN Fengying, XU Wenqing, WEI Heli. Development of Spectral Radiance Measurement System for Sky Background[J]. Journal of Atmospheric and Environmental Optics, 2019, 14(4): 241.

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