Fast Method of Locating Metallic Foreign Body in the Human Body
Metallic foreign body penetration remains a common clinical problem, which always leads to more suffering of patients and difficulties of doctors management. Considering the drawbacks and limitations of traditional radiological detection, we present a fast method in this paper based on gradient measurement of cheap fluxgate sensors. A theoretical model for locating ferromagnetic and nonferromagnetic metal was elaborated and experimentally validated. A non-magnetic steel skeleton bound with metglas ribbons was chosen and digital signal processor was utilized to design magnetic exciting and signal processing algorithm, which provided a better fluxgate performance. A good symmetric configuration between the two sensors has been demonstrated through the calibration experiment, which lays the foundation for further animal and clinical experiment.
metallic foreign body fluzgate location digitalsignal processor calibration
Da Jing Erping Luo Guanghao Shen Jing Cai Chi Tang Yili Yan Bin Jing
Department of Biomedical Engineering,the Fourth Military Medical University XiAn Shaanxi CHN 710032,China
国际会议
2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)
北京
英文
4071-4074
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）