This paper introduces the main structure and using effect of detecting device for airport visibility and presents the idea of the structure design that it can be convenient for the routine maintenance, and can be used to protect the aircraft form hitting on the devices instal ed at the runway, prevent the control box from leakage and ensure the perfection to the sensor bracket.%介绍了机场能见度探测设备的主要构成及其使用效果。阐述了结构设计的想法和重点：如何使野外设备日常维护更为方便；机场跑道边安装设备后，如何防止飞机冲出跑道与其碰撞，并能够最大限度的保护飞机；控制箱防水密封的解决方法；传感器支架设计综合考虑。
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