自动水平漫反射平台控制部分的设计及实现

Design and Realisation of Control Part of Auto-Levelling Diffuse Reflection Reference Platform

野外光谱测量过程中,保持参考板的水平放置,有助于减小太阳照射参考板入射角的不确定性,提高测量精度。为了降低野外光谱测量操作强度、提高测量效率,使用TMS320F2812数字信号控制器、基于三维微机电系统原理制成的倾角传感器SCA100T-D01和步进电机组成一个闭环控制系统,设计并实现了一个快速将漫反射参考板调节水平的平台。介绍了该自动水平台的工作原理,详细描述了该自动调节水平漫反射平台控制部分各个模块的硬件设计和软件设计,并给出了系统的工作流程图。与传统使用水平尺手动调平方法相比,该平台调平速度快,精度高。

Keeping the diffuse reflection reference plate in leveling status in the process of field spectral measurement was helpful in reducing the uncertainty of the solar incidence angle into the reference plate. In order to reduce the operation strength of the field spectral measurement and to improve the measurement efficiency, a platform that can level the reference plate rapidly was designed and realized by using the digital signal controller TMS320F2812, inclinometer SCA100T-D01 based on the 3-dimension MEMS technology, and step motors comprised of a close-loop control system. The operation principle of the auto-leveling platform were introduced, and the hardware and software of the control part of this auto-leveling platform was descript part by part in detail, and the system operation flow chart was conducted, too. Compared with the traditional leveling method, that levels the reference plate manually by using the level ruler, this platform carries the characteristics of rapidity and high accuracy.