海洋磁力仪绝对准确度的测试与分析  

The test and analysis of the marine magnetometer absolute accuracy

作　　者：董庆亮 上飞飞 刘翀 张其大 陈晨 沈康 廖景铭 DONG Qingliang;SHANG Feifei;LIU Chong;ZHANG Qida;CHEN Chen;SHEN Kang;LIAO Jingming(91650 Troops,Guangzhou 510320,China)

机构地区：[1]91650部队,广东广州510320

出　　处：《海洋测绘》2021年第6期73-77,共5页Hydrographic Surveying and Charting

摘　　要：绝对准确度是海洋磁力仪重要的技术指标之一,是海洋磁力测量成果质量的基本保证。针对目前海洋磁力仪技术指标检测内容和方法的欠缺,尤其缺少绝对准确度的测试方法,以G-882型海洋磁力仪为例,在分析其静态噪声基础上,利用地磁测量中仪器比对的方法及同步连续观测分析法,以国家基准地磁台磁力仪为标准仪器,介绍了海洋磁力仪绝对准确度测试方法。经实际测试,该方法简单、有效,可作为技术人员测试海洋磁力仪绝对准确度的一种手段。把检测值改正到海上测量成果中,可提高海洋磁力测量成果的精度。The absolute accuracy is one of the most important specifications for the marine magnetometer, and the basic guarantee of the achievement quality for the marine magnetic survey. Aiming at the deficiency of the content and method for the marine magnetometer’s technical specifications test, especially the lack of the test method for the absolute accuracy, based on the analysis of the static noise of G-882 marine magnetometer, the paper presents a test method of the absolute accuracy for marine magnetometer by using comparison method and analysis method of the continuous observations, taking magnetometer of national basic magnetism set as the reference instrument. The case study shows that the method is simple and effective and can be used to test the absolute accuracy of the marine magnetometer. The achievement precision can be raised when the examination value is corrected to the marine magnetic survey data.

关 键 词：海洋磁力测量 海洋磁力仪 技术指标 绝对准确度 静态噪声 

分 类 号：P318.6[天文地球—固体地球物理学]