紫外-可见光吸收性气溶胶地基监测系统

Ground-based monitor system for ultraviolet-visible light absorbent aerosol

为综合利用太阳直射和天空散射等自然光源对吸收性气溶胶进行地基监测,研制了基于被动光学遥感技术的监测系统。系统硬件主要包括双通道望远镜及太阳跟踪器,实现对太阳直射光和天空散射光的交替收集;探测器实现分光和采集;控制器进行系统的运行控制;电控箱装载电源模块和采样电路。软件上基于LabVIEW设计了仪器的控制系统,并利用CCD的感兴趣区技术对紫外-可见光光谱分别采集。实验表明,该系统能够实现对太阳直射和天空散射的自动化地基观测,并能得到紫外-可见光波段有效的光谱数据。

In order to observe the absorbent aerosol via the natural light source like direct sunlight and sky scattering generally, the ground-based monitor system has been developed on the basis of passive optical remote sensing technology. The system’s hardware mainly includes dual-channel telescope which collects the direct sunlight and sky scattering respectively, detector realizing the decompose and collect of light, controller which controls the operating of the system, electric cabinet containing the power module and sampling circuit. It’s control system is designed by using the LabVIEW software, the region of interest of the CCD is also set up to collect the ultraviolet-visible spectrum signal respectively. The experiment result shows that this system can realize the automatic ground-based observation of the direct sunlight and sky scattering, and also can get the effective spectrum data of ultraviolet-visible band.