用于胃肠道微型机器人的组合螺线管式无线能量发射系统研究

为保障胃肠道微型机器人在体内稳定、可靠工作,以扩大无线能量传输系统的工作范围、提高接收能量及其稳定性为目标,研究了新型组合螺线管式无线能量发射系统.通过有限元仿真分析,确定发射线圈的最佳结构及结构参数.基于最小传输能量要求及所提出的发射线圈性能评估指标,优化确定发射线圈的匝数.研制的发射线圈尺寸为50 cm×50 cm...

Research on combined solenoid wireless power transmitting system for gastrointestinal micro-robot

In order to ensure the stable and reliable work of gastrointestinal (GI) micro-robots in human body, with the goal of expandingthe working range of the wireless power transfer (WPT) system, improving the received power and its stability, studies a new type ofcombined solenoid WPT system. Through finite element simulation analysis, the best configuration and structure parameters of the powertransmitting coil ( PTC) is determined. According to the minimum power transmitting requirement and the proposed performanceevaluation index of the PTC, the number of turns of the PTC is optimized and determined. The size of the fabricated PTC is 50 cm×50 cm×42 cm, which is 17 cm larger than that of the traditional Helmholtz coil in the axial direction, the PTC can cover the human GIregion more completely. The experiment results show that using a three-dimensional orthogonal power receiving coil with a side length of12 mm, the load received power exceeds 660 mW at any positiosn and orientations inside the PTC. In the non-edge area of the PTC, theposition stability of the received power exceeds 80% . The system can meet the practical requirement of power supply for gastrointestinalmicro robot.