| 海底定向技术:原理、结构与应用 |
| |
| 引用本文： | 徐行,吴琼,涂君,陈凯,王浩森.海底定向技术:原理、结构与应用[J].地球物理学报,2021,64(4):1341-1350. |
| |
| 作者姓名： | 徐行 吴琼 涂君 陈凯 王浩森 |
| |
| 作者单位： | 广州海洋地质调查局,广州 510760;中国地震局地球物理研究所,北京 10083;中国地质大学(北京),北京 100083;南方科技大学,广东深圳 555001 |
| |
| 基金项目： | "和国家重大科学仪器设备开发专项"海洋地磁场矢量测量仪开发与应用";广东省级促进经济发展专项资金(海洋经济发展用途)专项"天然气水合物先导区建设与资源区块优选项目 |
| |
| 摘 要： | 海底定向测量技术可为海底观测、原位探测和沉积物取样等海洋地质与地球物理调查提供高精度姿态方位信息,进而拓展海洋科学与工程研究领域.本文系统介绍了自主研发海底磁方位仪的工作原理、技术方法.系统误差分析表明,海底磁方位仪的定向精度与其安装环境中的软磁材料对测点位置地球磁场干扰的情况密切相关.本文针对性的提出一套可行的磁补偿试验方法,有效地消除安装环境中软磁材料对整机定向精度的影响.实际案例和典型应用的分析研究表明,在无电器设备的情况下,整机系统定向精度小于1°.而有电器的设备环境中,定向精度在3~5°范围左右,可满足目前海洋地学调查中对方位信息的测量需求.
|
| 关 键 词： | 深海海底 定向技术 罗差 磁补偿 磁方位仪 |
Seafloor orientation technique:the introduction of its principle,structure,and applications |
| |
| XU Xing,WU Qiong,TU Jun,CHEN Kai,WANG Hao Sen.Seafloor orientation technique:the introduction of its principle,structure,and applications[J].Chinese Journal of Geophysics,2021,64(4):1341-1350. |
| |
| Authors: | XU Xing WU Qiong TU Jun CHEN Kai WANG Hao Sen |
| |
| Institution: | (Guangzhou Marine Geological Survey,Guangzhou 510760,China;Institute of Geophysics,China Earthquake Administration,Beijing 100081,China;China University of Geosciences,Beijing 100083,China;Centre for Marine Magnetism(CM2),Department of Marine Science and Engineering,Southern University of Science and Technology,Shenzhen Guangdong 555001,China) |
| |
| Abstract: | Seafloor orientation survey technique can provide high-precision information for seafloor observation,in-situ detection,and sediment sampling.Thus,it greatly expands the research fields of marine science and engineering.In this paper,we systematically introduce our self-developed seafloor magnetic azimuth meter,including its working principle and technique method.The analysis of the system errors indicates that the accuracy of the equipment is closely associated with the interference of geomagnetic field in the measurement position caused by the soft magnetic materials in the equipment′s working environment.Moreover,we purposefully present a set of feasible magnetic compensation test method in this paper,which can effectively eliminate the influence of the equipment′s system errors by interference of geomagnetic.Through typical application research and practical cases,we find that in non-electrical equipment,the system orientation accuracy is less than 1°,while in the environment of electrical equipment,the orientation accuracy of the system is around 3~5°. |
| |
| Keywords: | Seafloor Orientation technique Compass deviation Magnetic compensation Magnetic azimuth meter |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
