摘要
随着无线胶囊内窥镜的发展,无线能量传输技术越来越受到人们的关注。无线能量传输技术在应用过程受到尺寸、安全性等诸多因素的约束,如何在这些约束条件下设计安全、高效的无线能量传输系统是目前研究的重点。提出了磁场均匀度、频率稳定度、三维线圈姿态稳定度和接收能量均匀度等指标来综合评价能量传输系统性能,设计并实现了测试平台来测量这些性能指标,为进一步对整个系统进行优化设计提供依据。采用上述方法对一套为胶囊内窥镜设计的无线能量传输系统进行了测量与评价,结果表明系统可在体积为Φ12 mm×14 mm的空间内提供不低于450 mW的能量,且满足稳定性和安全性要求,实验证明了该方法的可行性。
With the development of the wireless capsule endoscopes,the technology of wireless power transmission attracts more and more attention.However,its application is limited by the factors,such as size and safety.Under these restraints,the design of wireless power transmission system with safety and high efficiency is a hot tissue recently.Indexes,for example,magnetic field uniformity,frequency stability,the orientation stability of 3-demension receiving coil and the uniformity of receiving power,were presented to evaluate the transmission system.The measuring table was designed and realized to measure these indexes,and this could provide the reasons for further optimization of the system.A wireless power transmission system for capsule endoscopy was measured and estimated in this method.The results show that the wireless power transmission system can deliver at least 450mW energy in a volume of Φ12mm×14mm,and satisfies the demand of the receiving stability and safety.The experiments verified the validity.
出处
《电子测量与仪器学报》
CSCD
2011年第12期1060-1065,共6页
Journal of Electronic Measurement and Instrumentation
基金
国家863计划(2007AA04Z234
2008AA04Z201)
国家自然科学基金(60875061
31170968
30800235)
载人航天领域预先研究(010203)
上海市科委(09DZ1907400)资助项目
关键词
无线能量传输系统
优化平台
磁场均匀度
频率稳定度
姿态稳定度
接收能量稳定度
wireless power transmission system
platform for optimization
magnetic field uniformity
frequency stability
safety of human tissue
receiving power uniformity
