一种用于体内微型诊疗装置定位的磁场检测电路设计  

Design of a magneticfield detection circuit to locate the micro medical device inside the human body

作　　者：彭小燕[1] 彭承琳[1] 侯文生[1] 郑小林[1] 吴旭东[1] 

机构地区：[1]重庆大学生物力学及组织工程光电技术及系统教育部重点实验室,重庆市400044

出　　处：《医疗卫生装备》2003年第12期7-8,共2页Chinese Medical Equipment Journal

基　　金：国家863项目"基于MEMS的人体消化道诊疗系统研究"的资助

摘　　要：空间磁场检测是磁场空间定位技术中的重要组成部分。根据将永磁体用于生物体内微型诊疗装置定位的实验研究需要,作者设计了一种基于单片机控制、能同时检测永磁体周围空间多点磁场参数的硬件电路。实验表明,本电路可以实现对永磁体空间磁场变化的实时检测,电路简单可靠,通道一致性好。The magnetic field detection is an important part of magneticfield-based position method.According to the need of experiment research for determining the location of micro device inside the human body through permanent magnet,this paper introduces a circuit based on S CM that is able to detect the multiposition magnetic parameters about the perma nent magnet at the same time.It is proved by experiments that the real-time d etection of the change of magnetic field can be realized through the simple and reliable circuit,which has good channel consistency.

关 键 词：体内微型诊疗装置 电路设计 磁场定位 多通道检测 AD转换 

分 类 号：TN702[电子电信—电路与系统]