主动型无线胶囊内窥镜闭环驱动系统设计

Design of a Closed-Loop Drive System for the Active Wireless Capsule Endoscope

为实现无线胶囊内窥镜的主动控制,通过驱动系统(机电能量转换)原理的分析,提出了闭环控制系统的设计方案,推导出驱动力的关系式.并采用二维磁场有限元法的数学离散模型,给出了驱动技术的控制算法,通过Ansys模型仿真验证了驱动力和控制算法的正确性.

In order to achieve the active control of wireless capsule endoscopes,this paper puts forward a design scheme of the closed-loop control system through an analysis of the principle of the drive system（electromechanical energy conversion）,and deduces the relations of the driving force.A mathematical discrete model of the 2-D finite element method（FEM）is used to give the control algorithm of driving technology.Finally,an Ansys model simulation verifies the correctness of the drive and control algorithm.