机场地磁场测量及数据处理  

Airport Geomagnetic Field Survey and Associated Data Processing

作　　者：李秋红 辛长江 陈双贵 许康生 闫万生 

机构地区：[1]甘肃省地震局,甘肃兰州730000

出　　处：《地震工程学报》2016年第A01期44-48,共5页China Earthquake Engineering Journal

基　　金：地震行业科研专项(201508009);地震行业科研专项(201508013)

摘　　要：地磁偏角(D)被广泛应用于飞行器的导航,磁罗经是最经典、最可靠的导航工具之一。结合中国机场地磁测量的需求和地磁观测的现状,详细描述罗经标定盘(Compass rose或Compass calibration pad)在机场选址、建设及应用过程中,利用质子旋进磁力仪(GSM-19T或G856)、磁通门无磁经纬仪(CTM-DI或Mingeo)和差分GPS(PROMARK 2或PROMARK 100)进行地磁总强度(F)梯度、地理方位角、地磁方位角和地磁偏角(D)的测量方法。同时描述观测数据仪器差的改正、日变通化和长期变计算方法,以供机场地磁测量应用。In Aeronautics, the magnetic compass is extensively used to navigate the aircraft. In case of failure of other electronic navigation devices （GPS , VOR , etc.）, the magnetic compass can play an important backup role. This paper mainly focuses on measuring the ggeomagnetic total intensity, the geographic azimuth, and the geomagnetic declination using a proton precession magnetometer （ GSM-19T or G856 ） , a non-magnetic fluxgate theodolite （CTM-DI or Mingeo）, and a differential GPS （PROMARK 100 or PROMARK 2）. The results can be applied for selecting the airport site and for constructing the airport. Iplore the different methods of correcting instrument differences, removing diurnal variation from observational data, and computing secular variation, which are useful for the airport geomagnetic surveys.

关 键 词：地磁测量 地磁偏角 磁罗经 磁罗经标定盘 

分 类 号：P318.6[天文地球—固体地球物理学]