Design of Electromagnetic Tracking System Using Rotating Magnetic Field Based on DSP.
10.3969/j.issn.1671-7104.2018.02.001
- VernacularTitle:基于DSP的旋转磁场电磁跟踪系统设计
- Author:
Chang SHENG
1
;
Min SHA
1
;
Xiaomei WU
1
;
Zuxiang FANG
1
Author Information
1. Department of Electronic Engineering, Fudan University, Shanghai, 200433.
- Publication Type:Journal Article
- Keywords:
curve fitting;
digital signal processor;
electrically-controlled rotating magnetic field;
electromagnetic tracking system;
position and orientation
- MeSH:
Calibration;
Electromagnetic Phenomena;
Equipment Design;
Magnetic Fields
- From:
Chinese Journal of Medical Instrumentation
2018;42(2):79-83
- CountryChina
- Language:Chinese
-
Abstract:
This paper realized an electromagnetic tracking system based on electrically-controlled rotating magnetic field. A tracking system using the digital signal processor (DSP) as the control processing device was developed, including a controllable constant current source module, a magnetic field source module, a three-axis magnetic sensor and ADC interface circuit. The experimental results verified that each time the system could be stable positioning, average error of position was 0.282 cm, the average error of orientation was 0.696o, the positioning time was 1.572 s. Through calibration and further improvement of the hardware circuit, the performance of the system is expected to further improve.
