摘要
以定位人体胃肠道生理参数遥测胶囊为目标,设计了便携交流激磁式定位系统。分析了定位系统的工作原理,建立了基于载流螺线管磁场计算模型的交流激磁定位模型,采用模拟退火算法求解了定位方程。体外实验结果表明,此便携式定位系统在10~500 mm处定位精度能达到10 mm,抗干扰能力强,能够满足微型介入式装置在人体中的定位要求。
For localization of micro invasive diagnosing devices in vivo,a portable positioning system of the capsule for detecting gastrointestinal physiological parameters was designed.The working principle was analyzed. Then,an AC electromagnetic positioning model was established based on a solenoid model for computing magnetic flux density.Finally,the capsule positions were calculated according to the simulated annealing algorithm.The experiments in vitro show that the positioning system has a higher accuracy of n...
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2008年第3期492-499,共8页
Optics and Precision Engineering
基金
国家自然科学基金资助项目(No.30570485)
国家“863”高技术研究发展计划资助项目(No.2006AA04Z368)
国家教育部博士点基金资助项目(No.20040248033)
关键词
微型介入式诊疗装置
电磁定位
准静态场
胃肠道诊断
模拟退火算法
micro invasive diagnosing device
electromagnetic positioning
quasi-static field
gastrointestinal diagnosis
simulated annealing algorithm
