Ambient and Wireless Power Sources for Miniature Devices
Eric Yeatman & Paul Mitcheson
Wireless electronic devices have been proliferating in recent years, and will continue to do so. Most are powered by batteries, and removing the burden of recharging or replacing these is becoming ever more attractive. Wireless sensors are a particularly compelling application, because in many desired applications they will be large in number, and difficult to access, while having modest power requirements. At Imperial College London, we have developed a variety of alternative powering methods, including kinetic energy harvesters, dynamic thermoelectric harvesters, resonant inductive charging systems, and ultrasonic power delivery. We will present these devices and methods, and also demonstrate a new concept called synthetic sensor networks, in which drones or other mobile robots visit widely scattered sensors to autonomously collect data and deliver wireless power. We will introduce new applications for such systems, and discuss future possibilities and trends.
近些年来，无线电子器件的数量激增并将持续增长。这些器件大多由电池供电，因此，解决相应的充电及更换电池的问题将至关重要。在这些器件中，无线传感器尤为引人注目， 因为在大量预期应用中这些无线传感器数量庞大，难以访问，同时拥有适度的能量需求。在帝国理工学院，我们已经为无线传感器开发了各种替代性的供电技术，包括动能采集器，动态热能采集器，谐振感应充电系统以及超声能量传输。我们将介绍这些器件和技术，同时展示一种新的概念：综合传感器网络（synthetic sensor networks）。在这个网络中，无人机和其他可移动的机器人通过访问广泛散布的传感器从而自主地收集传感器数据并为传感器无线充电。我们将介绍为该系统设计的新型应用范例，并讨论其未来的可能性及发展趋势。
Eric M. Yeatman has been a member of academic staff in Imperial College London since 1989, and Professor of Micro-Engineering since 2005. He has published more than 200 papers and patents, primarily on micro-fabrication, micro-optics, micro-electro-mechanical systems (MEMS), and sensor systems. Since 2015 he is Head of the Department of Electrical and Electronic Engineering. He is a Fellow and a Silver Medalist of the Royal Academy of Engineering, and a Fellow of the IEEE. Prof. Yeatman is also co-founder and director of Microsaic Systems plc, which develops and markets miniature mass spectrometers, based on MEMS technology, for chemical analysis.
Eric M. Yeatman教授于1989年在帝国理工学院任职，2005年至今担任微工程学教授。他已发表超过200篇学术论文及专利，主要聚焦于微加工，微光学，微机电系统及传感系统。Eric M. Yeatman教授自2015年起担任电气及电子工程系主任。他是英国皇家工程院院士及银质奖章获得者， IEEE Fellow。Yeatman教授也是Microsaic Systems plc公司的联合创始人及董事，该公司开发及销售基于MEMS技术的微型质谱仪。
Paul Mitcheson received the MEng degree in Electrical and Electronic Engineering in 2001 and the PhD degree in 2005 both from Imperial College London. He is currently Professor of Electrical Energy Conversion in the Control and Power Research Group in the Electrical Engineering Department at Imperial and has research interests in energy harvesting systems, wireless power transfer and power electronics. He is a fellow of the higher education academy and senior member of the IEEE. He was general co-chair of PowerMEMS 2013, held in the Royal Society, London and of IEEE Wireless Power Week, 2019, held in London at the IET. He sits on the Executive Committee of the UK Power Electronics Centre.