High power density vibration energy harvester with high permeability magnetic material

2011 ◽  
Vol 109 (7) ◽  
pp. 07E514 ◽  
Author(s):  
X. Xing ◽  
G. M. Yang ◽  
M. Liu ◽  
J. Lou ◽  
O. Obi ◽  
...  
Keyword(s):  
Magnetic Material ◽  
Power Density ◽  
High Power ◽  
Energy Harvester ◽  
Vibration Energy ◽  
High Power Density ◽  
High Permeability ◽  
Vibration Energy Harvester

Wideband vibration energy harvester with high permeability magnetic material

2009 ◽  
Vol 95 (13) ◽  
pp. 134103 ◽  
Author(s):  
X. Xing ◽  
J. Lou ◽  
G. M. Yang ◽  
O. Obi ◽  
C. Driscoll ◽  
...  
Keyword(s):  
Magnetic Material ◽  
Energy Harvester ◽  
Vibration Energy ◽  
High Permeability ◽  
Vibration Energy Harvester

High Power Density Levitation-Induced Vibration Energy Harvester

2014 ◽  
Vol 1 (1-2) ◽  
Author(s):  
Daniel J. Apo ◽  
Shashank Priya
Keyword(s):  
Computational Modeling ◽  
High Power ◽  
Energy Harvester ◽  
Vibration Energy ◽  
High Power Density ◽  
Low Frequencies ◽  
Vibration Energy Harvester ◽  
Response Voltage ◽  
Power Response ◽  
Moving Magnet

AbstractWe report a levitation-induced vibration energy harvester based on a double-repulsion configuration in the moving magnet composite. Computational modeling clearly illustrated the advantages of the double-repulsion configuration over the single-repulsion and no-repulsion configurations. Double-repulsion configuration provided the best dynamics (displacement and velocity) and output response (voltage). Based on the modeling results, an AA battery-sized harvester with the double-repulsion configuration was fabricated. The harvester exhibited high power response at low frequencies (12.9 mW at 1

scholarly journals Theoretical and Experimental Studies on MEMS Variable Cross-Section Cantilever Beam Based Piezoelectric Vibration Energy Harvester

Micromachines ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 772
Author(s):  
Xianming He ◽  
Dongxiao Li ◽  
Hong Zhou ◽  
Xindan Hui ◽  
Xiaojing Mu
Keyword(s):  
Power Density ◽  
Cantilever Beam ◽  
Cross Section ◽  
Energy Harvester ◽  
Variable Cross Section ◽  
Vibration Energy ◽  
Variable Cross ◽  
Vibration Energy Harvester ◽  
Piezoelectric Vibration Energy Harvester ◽  
Piezoelectric Vibration

The piezoelectric vibration energy harvester (PVEH) based on the variable cross-section cantilever beam (VCSCB) structure has the advantages of uniform axial strain distribution and high output power density, so it has become a research hotspot of the PVEH. However, its electromechanical model needs to be further studied. In this paper, the bidirectional coupled distributed parameter electromechanical model of the MEMS VCSCB based PVEH is constructed, analytically solved, and verified, which laid an important theoretical foundation for structural design and optimization, performance improvement, and output prediction of the PVEH. Based on the constructed model, the output performances of five kinds of VCSCB based PVEHs with different cross-sectional shapes were compared and analyzed. The results show that the PVEH with the concave quadratic beam shape has the best output due to the uniform surface stress distribution. Additionally, the influence of the main structural parameters of the MEMS trapezoidal cantilever beam (TCB) based PVEH on the output performance of the device is theoretically analyzed. Finally, a prototype of the Aluminum Nitride (AlN) TCB based PVEH is designed and developed. The peak open-circuit voltage and normalized power density of the device can reach 5.64 V and 742 μW/cm3/g2, which is in good agreement with the theoretical model value. The prototype has wide application prospects in the power supply of the wireless sensor network node such as the structural health monitoring system and the Internet of Things.

High Power Density CMOS Compatible Micro-Machined MEMs Energy Harvester

2019 ◽  
Vol 19 (20) ◽  
pp. 9122-9130 ◽  
Author(s):  
Sandeep Singh Chauhan ◽  
M. M. Joglekar ◽  
S. K. Manhas
Keyword(s):  
Power Density ◽  
High Power ◽  
Energy Harvester ◽  
High Power Density ◽  
Cmos Compatible
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