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海底定向技术:原理、结构与应用 被引量:1
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作者 徐行 吴琼 +2 位作者 涂君 陈凯 王浩森 《地球物理学报》 SCIE EI CAS CSCD 北大核心 2021年第4期1341-1350,共10页
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... 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. 展开更多
关键词 深海海底 定向技术 罗差 磁补偿 磁方位仪
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3-D Magnetic Sensor Module for Locating and Tracking MEMS Swallowable Capsule Based on Scalar Form of Magnetic Dipole Model 被引量:2
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作者 WU Xu-dong PENG Cheng-lin HOU Wen-sheng ZHENG Xiao-lin FANG Xing 《Chinese Journal of Biomedical Engineering(English Edition)》 2007年第2期79-86,共8页
MEMS swallowable capsule is a novel technology in the non-invasive surgery. This technology provides a way to diagnose directly into the deep intestinal where the traditional invasive technology implemented, such as X... MEMS swallowable capsule is a novel technology in the non-invasive surgery. This technology provides a way to diagnose directly into the deep intestinal where the traditional invasive technology implemented, such as X-Ray, endoscopy. It is a key for us to locate and track the position of a MEMS capsule in clinical applications. To solve this problem, we implemented a magnetic sensor module based on the scalar form of the magnetic dipole model,which was designed with very small size (5.2 * 2. 1 * 1.2 em) and easy to assemble to satisfy the system requirement. Here we discuss in detail the principle of magnetic dipole model, rules of selecting sensor and functions of the module. Some trials are established to test the characteristic of the module. The results of the Cm experiment demonstrates that the module follows the rules of the new magnetic dipole model form. 展开更多
关键词 sealar form of magnetic dipole model 3-D magnetic sensor module
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