OSpRad; an open-source, low-cost, high-sensitivity spectroradiometer
OSpRad; an open-source, low-cost, high-sensitivity spectroradiometer
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OSpRad；
DOI：
10.1101/2022.12.09.519768
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Troscianko J
中科院分区：
文献类型：
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作者：
Troscianko J
光谱辐射测量是生物、物理、天文和医学领域的重要工具，但其成本和可及性经常成为使用的障碍。对夜间人造光影响的研究(Alan)进一步将这些困难与对从紫外线到人类可见光谱的极低光强的敏感度要求相结合。在这里，我展示了一个开放源码的光谱辐射测量(OSpRad)系统，它可以应对这些设计挑战。该系统使用价格实惠的微型光谱仪芯片(Hamamatsu C12880 MA)、自动快门和余弦校正器、微处理器控制器以及可用于智能手机或台式电脑的图形用户界面应用程序。该系统具有很高的紫外灵敏度，可以测量0.001 cd m−2的光谱辐射度和0.005 lx的辐照度，覆盖了绝大多数现实世界的夜间光级。OSpRad系统的低成本和高灵敏度使其非常适合一系列光谱和Alan研究。
Spectroradiometry is a vital tool in a wide range of biological, physical, astronomical and medical fields, yet its cost and accessibility are frequent barriers to use. Research into the effects of artificial light at night (ALAN) further compounds these difficulties with requirements for sensitivity to extremely low light levels across the ultraviolet to human-visible spectrum. Here, I present an open-source spectroradiometry (OSpRad) system that meets these design challenges. The system utilises an affordable miniature spectrometer chip (Hamamatsu C12880MA), combined with an automated shutter and cosine-corrector, microprocessor controller, and graphical user interface ‘app’that can be used with smartphones or desktop computers. The system has high ultraviolet sensitivity and can measure spectral radiance at 0.001 cd m− 2 and irradiance at 0.005 lx, covering the vast majority of real-world night-time light levels. The OSpRad system's low cost and high sensitivity make it well suited to a range of spectrometry and ALAN research.