摘要
针对微机器人有缆驱动的缺点,介绍了一种以外旋转磁场驱动内嵌永磁体的胶囊微机器人游动的无缆驱动方法。阐述了胶囊微机器人的驱动原理与旋转磁场的产生方法,并结合直接数字频率合成(DDS)技术,开发了以单片机AT89S52和DDS芯片AD9854为核心的旋转磁场驱动信号源。对系统进行软硬件设计和调试,产生的两路正余弦信号可驱动两组亥姆霍兹线圈产生旋转磁场。
This paper introduces a wireless driving method for the micro capsule robot with an embedded permanent magnetic, by using an exterior rotating magnetic field. The signal source of the magnetic field is based on the AT89S52 MCU and DDS chip AD9854, which is developed with the technique of Direct Digital frequency Synthesis （DDS）. Two channels of sine and cosine signals are used to drive two sets of the Helmholtz coils for generating a rotating magnetic field. Hardware and software of the system are outlined.
出处
《自动化技术与应用》
2009年第3期64-67,共4页
Techniques of Automation and Applications
基金
国家自然科学基金资助项目(60675054
60875064)
