为了实现智能导盲鞋随时无线供电的目的,设计了一种自供电式电源。开发大功率压电振动能量采集器(Piezoelectric Vibration Energy Harvester,PVEH)驱动导盲鞋进行工作,采用由PVDF-TrFE压电薄膜制成的鞋垫传感器。PVEH可以在行走期间通...为了实现智能导盲鞋随时无线供电的目的,设计了一种自供电式电源。开发大功率压电振动能量采集器(Piezoelectric Vibration Energy Harvester,PVEH)驱动导盲鞋进行工作,采用由PVDF-TrFE压电薄膜制成的鞋垫传感器。PVEH可以在行走期间通过鞋底的冲击力操作无线模块和鞋垫传感器,并测试传输传感数据。自供电电源为导盲鞋系统提供了足够的能量,大大降低了功耗。该系统结构简单、性能稳定且操作容易,具有较高的性价比和广阔的市场前景。展开更多
Anodic oxidization （AO） is one of the most important methods available for fabricating mesoporous Al2O3 , which can be conducted at either high potential or low potential; however, the need for an external electrici...Anodic oxidization （AO） is one of the most important methods available for fabricating mesoporous Al2O3 , which can be conducted at either high potential or low potential; however, the need for an external electricity power source limits its applications. In this work, a novel self-powered electrochemical anodic oxidization （SPAO） system was introduced for preparing mesoporous Al2O3 , by using newly-invented triboelectric nanogenerator （TENG） arrays driven by wind power. Using the controllable voltage output of the TENG arrays, the SPAO system was shown to regulate the pore depth and pore size of the mesoporous Al2O3 . In contrast to traditional AO systems, this technique takes advantage of the high output voltage of TENG arrays without any additional energy costs. In addition, the SPAO system can be used for the preparation of other mesoporous materials.展开更多
文摘为了实现智能导盲鞋随时无线供电的目的,设计了一种自供电式电源。开发大功率压电振动能量采集器(Piezoelectric Vibration Energy Harvester,PVEH)驱动导盲鞋进行工作,采用由PVDF-TrFE压电薄膜制成的鞋垫传感器。PVEH可以在行走期间通过鞋底的冲击力操作无线模块和鞋垫传感器,并测试传输传感数据。自供电电源为导盲鞋系统提供了足够的能量,大大降低了功耗。该系统结构简单、性能稳定且操作容易,具有较高的性价比和广阔的市场前景。
基金Acknowledgements We thank the financial support from the National Natural Science Foundation of China （NSFC） （Nos. 21173017, 51272011, and 21275102）, the Program for New Century Excellent Talents in University （No. NCET-12-0610）, the Science and Technology Research Projects from Education Ministry （No. 213002A）, National ＂Twelfth Five-Year＂ Plan for Science ＆ Technology Support （No. 2013BAK12B06）, the ＂thousands talents＂ program for pioneer researcher and his innovation team, China, National Natural Science Foundation of China （Nos. 51432005 and Y4YR011001）, Beijing Municipal Commission of Science and Technology （Nos. Z131100006013004 and Z131100006013005）.
文摘Anodic oxidization （AO） is one of the most important methods available for fabricating mesoporous Al2O3 , which can be conducted at either high potential or low potential; however, the need for an external electricity power source limits its applications. In this work, a novel self-powered electrochemical anodic oxidization （SPAO） system was introduced for preparing mesoporous Al2O3 , by using newly-invented triboelectric nanogenerator （TENG） arrays driven by wind power. Using the controllable voltage output of the TENG arrays, the SPAO system was shown to regulate the pore depth and pore size of the mesoporous Al2O3 . In contrast to traditional AO systems, this technique takes advantage of the high output voltage of TENG arrays without any additional energy costs. In addition, the SPAO system can be used for the preparation of other mesoporous materials.
