| 基于永磁磁场的电子胶囊定位系统 |
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| 引用本文： | 王坤东,颜国正,姜萍萍,何文辉,郭旭东. 基于永磁磁场的电子胶囊定位系统[J]. 生物医学工程学杂志, 2007, 24(5): 1148-1151 |
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| 作者姓名： | 王坤东 颜国正 姜萍萍 何文辉 郭旭东 |
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| 作者单位： | 上海交通大学,仪器工程系,上海,200240 |
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| 基金项目： | 国家高技术研究发展计划(863计划);国家自然科学基金 |
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| 摘 要： | 为了确定可吞服式电子胶囊在人体内的位置,基于矩形永磁体空间磁场解析式,设计了定位系统,提出了相应的定位算法,并进行了实验。系统中两个三轴磁传感器封装在胶囊内,由胶囊和永磁体的空间位姿关系模型,建立了与传感器输出和胶囊位姿变量相关的一组非线性方程。对方程进行了数值求解,并和期望值进行了比较,结果发现该方法是切实可行的。
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| 关 键 词： | 电子胶囊 定位 永磁磁场 |
| 修稿时间： | 2005-10-08 |
Localization System for Electrical Capsule Based on Permanent Magnetic Field |
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| Wang Kundong,Yan Guozheng,Jiang Pingping,He Wenhui,Guo Xudong. Localization System for Electrical Capsule Based on Permanent Magnetic Field[J]. Journal of biomedical engineering, 2007, 24(5): 1148-1151 |
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| Authors: | Wang Kundong Yan Guozheng Jiang Pingping He Wenhui Guo Xudong |
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| Affiliation: | Department of Instrument Engineering, Shanghai Jiaotong University, Shanghai 200240,China |
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| Abstract: | Localization system was designed based on analytic equation of permanent magnetic field to localize the swallowing electrical capsule in the gastrointestinal.Algorithm was presented and experiment was made.Two three-axis magnetism sensors were mounted in the capsule.The non linear equations set of sensor's output and capsule's position and attitude was created according to space position and attitude relationship model.The equations set was resolved with numerical method.Comparison between the calculation value and expected value showed that this method was feasible. |
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| Keywords: | Electrical capsule Position Permanent magnetic field |
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