Title :
3D positioning system using magnetic field
Author :
Dong, Lin ; Hanwen, Luo ; Wentao, Song ; Youyun, Xu ; Xingzhao, Liu ; Wenjun, Zhang
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., China
Abstract :
A method to determine the 3D position using harmless magnetic field is proposed as a solution to the problem of positioning the medical instruments such as endoscope inside the patient´s body. The intension expression of magnetic induction produced by a single loop coil is derived and the mathematical model of 3D positioning system with a mode of magnetic field is established. Then a practical 3D positioning system is developed to implement real-time 6 degrees of freedom measurement by a 3D magnetic sensor attached to the endoscope and 5 degrees measurement by a single magnetic sensor.
Keywords :
electromagnetic induction; endoscopes; magnetic fields; magnetic sensors; mathematical analysis; position control; 3D magnetic sensor; 3D positioning system; magnetic field; magnetic induction; single loop coil; Biomedical engineering; Coils; Endoscopes; Instruments; Magnetic field measurement; Magnetic fields; Magnetic sensors; Mathematical model; Position measurement; Roads;
Conference_Titel :
Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on
Print_ISBN :
0-7803-8273-0
DOI :
10.1109/WCICA.2004.1343281
