测试技术学报2026，Vol.40Issue(4)：507-514,8.DOI:10.62756/csjs.1671-7449.2026038
面向胶囊内镜的无线能量传输系统设计
Design of Wireless Power Transmission System for Capsule Robot
摘要
Abstract
A wireless power transfer system is designed to address energy supply challenges in capsule endoscopy.Biological safety is ensured by incorporating specific absorption rate(SAR)and retained power as dual constraints.On the transmitter side,a one-dimensional Helmholtz coil with a diameter of 20 cm was designed.Through theoretical calculation and simulation analysis,the design parameters were optimized under the SAR constraints.A full-bridge inverter circuit was employed to drive the coil at 218 kHz,ultimately achieving stable excitation of a highly uniform magnetic field.On the receiver side,a three-dimensional orthogonal coil structure measuring Φ10.14 mm×15.2 mm was designed.With the goal of maximizing received power,its design parameters were optimized under the power deposition constraints.Furthermore,the induced electromotive force was regulated through rectification and voltage stabilization stages,thereby maximizing the received power.Experimental validation confirms the system safely sustains 450 mW LED illumination or drives dual micro-motors(20.41 mN·m torque,40 r/min)while maintaining SAR compliance.The proposed system offers a reliable technical framework for wireless energy transfer in capsule endoscopic applications.关键词
无线能量传输/胶囊内镜/电磁生物安全性/亥姆霍兹线圈Key words
wireless power transmission/capsule endoscopy/human tissue safety in magnetic field/Helmholtz coil分类
机械制造引用本文复制引用
卢晨智,钱瑞琛,朱可为,李新宇,高晋阳..面向胶囊内镜的无线能量传输系统设计[J].测试技术学报,2026,40(4):507-514,8.基金项目
国家自然科学基金资助项目(52275038,61803347) （52275038,61803347）
山西省优秀青年培育项目(202203021224007) （202203021224007）
