基于S2000光谱仪的小型海面高光谱辐射计的研制

Design and development of a mini-type ocean color surface spectroradiometer based on S2000

将普通的小巧型S2000光谱仪组装改造成用于海面测量的高光谱辐射计,安装在船只等移动平台上进行原位测量,可以获得向下辐照度和向上辐亮度的实验数据。阐述了整体设计思路,说明了其光路结构,光学采集单元分为光谱辐照度光学探头和光谱辐亮度光学探头。叙述了通过机械结构的调整来更准确地测量离水辐亮度,并给出了基于计算机进行显示和存储的编程软件。此系统获得的试验测量结果可以为海洋学研究提供充分的现场光学数据,有一定的实用价值。

This paper describes the design and deployment of an ocean color surface spectral radiometer based on S2000 radiometer. The data measured by the radiometer is diffused on a moving platform, such as a ship for in situ measurements. It can detect two indispensable parameters--water-leaving spectral radiance and irradiance. In this paper, not only the whole design scheme is introduced, but also the designs of optics components-irrandiance sensor and radiance sensor are illuminated. This paper also describes how to measure the water-leaving radiance by the change of mechanical configuration. From the calibration and experiment results of the spectral radiometer, we can see the spectral radiometer is fairly accurate and the results satisfactory. It can provide sufficient irradiant data to meet the need of scientific study and has it a bright application prospect.