A Low-Frequency Resonant Electromagnetic Vibration Energy Harvester Employing the Halbach Arrays for Intelligent Wireless Sensor Networks

2015 ◽  
Vol 51 (11) ◽  
pp. 1-4 ◽  
Author(s):  
Jing Qiu ◽  
Xin Liu ◽  
Hengjia Chen ◽  
Xiaoyu Xu ◽  
Yumei Wen ◽  
...  
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Energy Harvester ◽  
Low Frequency ◽  
Wireless Sensor ◽  
Vibration Energy ◽  
Vibration Energy Harvester ◽  
Electromagnetic Vibration ◽  
Halbach Arrays

A Step-up Vibration Energy Harvester Based on Piezoelectric Bimorph Cantilever

2011 ◽  
Vol 347-353 ◽  
pp. 3068-3076 ◽  
Author(s):  
Bing Jiang ◽  
Ping Liu ◽  
Li Juan Chen ◽  
Xiang Lin Li ◽  
Chi Feng ◽  
...  
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Energy Harvester ◽  
Supply Voltage ◽  
Wireless Sensor ◽  
Vibration Energy ◽  
Vibration Energy Harvester ◽  
Environmental Vibration ◽  
Self Powered ◽  
Application Requirements

Enabling technologies for wireless sensor networks have gained considerable attention in research communities over the past few years. With the advantage of high power density, piezoelectric vibration energy harvester is promising in self-powered wireless sensor networks. In this work, modeling of piezoelectric generator based on a bimorph cantilever is discussed and functional characteristics of the bimorph piezoelectric cantilever are given. Corresponding step-up energy harvesting circuit according to the practical application requirements is developed. Then an integrated environmental vibration energy harvester with a size of approximately 83mm × 55mm × 12mm was fabricated. The results shows that the energy harvester is able to provide a stable 3.3V supply voltage under 37Hz working frequency.

Trends of MEMS-Based Vibration Energy Harvester

2013 ◽  
Vol 562-565 ◽  
pp. 1251-1256
Author(s):  
Bing Mo ◽  
Rong Hai Huang ◽  
Rui Min Huang ◽  
Chao Dong Ling ◽  
Huo Zhou
Keyword(s):  
Wireless Sensor Networks ◽  
Power Management ◽  
Energy Harvester ◽  
Ambient Vibration ◽  
Wireless Sensor ◽  
Vibration Energy ◽  
Vibration Energy Harvester ◽  
Prospective Development ◽  
Energy Harvesters ◽  
Micro Vibration

Micro vibration energy harvesters have received much attention due to their potential application of low power wireless sensor networks and embedded systems. This paper studies three mechanisms to scavenge the ambient vibration energy, discusses the power management circuit and the application of the converter, investigates the prospective development and ongoing challenges in MEMS-based vibration energy harvester.

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