M型下滑天线监测控制单元(MCU)原理及故障检修

Principle and Corrective Maintenance of MCU in M-Type Glide Path Antenna

仪表着陆系统是国际民航组织批准使用的精密进近系统,由航向设备、下滑设备及指点标或测距仪设备组成,其中下滑设备天线类型可根据场地情况选择零基准型、边带基准型和M型天线。本文在此分析了NM7000B型仪表着陆系统M型下滑天线MCU工作原理,介绍重庆江北国际机场20L下滑台MCU故障分析处置过程,为其他机场类似设备故障维修提供借鉴。

The Instrument Landing System is a precision approach and landing system approved by ICAO (International Civil Aviation Organization). It consists of Localizer Equipment, Glide Path Equipment and Marker Beacon or Distance Measuring Equipment. There are three types of Glide Path Equipment antenna system, including Null-reference, Sideband-reference and M-reference, the choice of system is depended on site topography. This paper analyses the working principle of the M-type Glide Path antenna MCU of the NM7000B Instrument Landing System, and statements analysis and dispose of the fault for the 20L GP's MCU of Chongqing JiangBei International Airport, which will provide reference for similar equipment fault repair of other airports.