摘要
为适应高精度新型地磁仪器对观测磁偏角和磁倾角条件的需要,应用经典的天文测量方法,精密测定了天津静海地磁台改造后的7个观测墩至4个方位标志的方位角,共取得了38个方位角参数,平均标准偏差达到±1.2".使该台在磁偏角测量或仪器验收中可供7套仪器同时观测,并可以做到全天候观测.
In order to adapt to the observational condition of magnetic declination and inclination with the high resolution and precision magnetograph,the azimuths among 7 measurement platforms and 4 azimuth marks in reconstructed Jinghai station,Seismological Bereau of Tianjing,are precisely measured by using classical astrogeodetic method,and 38 parameters with average error ±1.2″are gained.After the measurements, 7 sets of instrument can be used at same time in allweather.
出处
《西北地震学报》
CSCD
北大核心
2003年第3期281-285,共5页
Northwestern Seismological Journal
关键词
地磁
天文方位角
测量
质量评估
Geomagnetism
Astronomic azimuth angle
Measurement
Quality evaluation
