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高光谱紫外辐照度仪CCD电路系统的设计及测试

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为了在地面获得高信噪比的太阳直射紫外光谱辐照度，选用紫外敏感型线阵CCD探测器，研发了高光谱紫外辐照度仪原理样机。设计了CCD电路系统，讨论了电源电路、驱动电路、模拟前端电路以及CCD驱动时序的工作原理与设计方法，并在实验室利用标准灯光源测试了CCD电路系统的非线性和信噪比。结果表明，在340 nm波段下，CCD探测器接收信号约为饱和信号的80%时，系统信噪比超过400。最终，将测试好的CCD电路系统与光机模块装调并进行了波长定标，光谱范围覆盖280～400 nm，实现了对室内光源的紫外高光谱测量，验证了CCD电路系统设计的合理性和可行性。
Design and test of CCD circuit system of hyperspectral UV irradiance monitor
In order to obtain the solar ultraviolet direct spectral irradiance with high signal-to-noise ratio on the ground,an ultraviolet sensitive linear array CCD detector was selected,and a prototype of a hyperspectral ultraviolet irradiance monitor was developed.The CCD circuit system was designed.The working principles and design methods of power supply circuit,driving circuit,analog front-end circuit and timing sequence of CCD driving were discussed.The nonlinearity and signal-to-noise ratio of the CCD circuit system were tested in the laboratory using a standard light source.The results show that in the 340 nm band,when the signal received by the CCD detector reaches about 80%of the saturated signal,the signal-to-noise ratio of the system exceeds 400.Finally,the tested CCD circuit system and the optomechanical module were assembled,and the wavelength calibration of the assembled spectrum module was carried out.It is shown that the hyperspectral UV irradiance monitor covers a spectral range of 280～400 nm,which meets the working requirements of the monitor for UV hyperspectral measurement,and verifies the rationality and feasibility of the CCD circuit system design.

spectroscopyhyperspectral UV irradiance monitorspectral calibrationlinear CCDsignal-to-noise ratio

关怡然、李新、张权、张艳娜

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中国科学院合肥物质科学研究院安徽光学精密机械研究所,安徽 合肥 230031

中国科学技术大学,安徽 合肥 230026

光谱学 高光谱紫外辐照度仪 光谱定标 线阵CCD 信噪比

国家重点研发计划国家重点研发计划中国科学院合肥物质科学研究院院长基金国家自然科学基金

2018YFB05046002018YFB0504604YZJJ2020QN442105139

2024

10.3969/j.issn.1007-5461.2024.02.007

量子电子学报
中国光学学会基础光学专业委员会 中国科学院合肥物质科学研究院

量子电子学报

CSTPCD北大核心
影响因子：0.67
ISSN：1007-5461
年,卷(期)：2024.41(2)
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