Integration of Energy Harvester for Self-Powered Wireless Sensor Network Nodes
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TLDR
The paper has developed a method to optimize the harvester parameters to attune it to the dominant vibration frequency and can meet the energy requirements of a WSN node and achieve an efficiency of 79%.Abstract:
This paper reports an energy harvester suitable for self-powered wireless sensor network (WSN) nodes consisting of a piezoelectric cantilever, an energy harvesting circuit, and a storage capacitor. Having the same size as a credit card, the proposed WSN nodes can be easily integrated into various applications, such as motor and air conditioning equipment. The WSN node is powered by an integrated bimorph piezoelectric generator that harvests energy from ambient vibration. The paper has developed a method to optimize the harvester parameters to attune it to the dominant vibration frequency. Tests carried out on the proposed harvester show that the proposed design can meet the energy requirements of a WSN node and achieve an efficiency of 79%.read more
Citations
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References
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MEMS power generator with transverse mode thin film PZT
TL;DR: In this paper, a cantilever device is designed to have a flat structure with a proof mass added to the end to create electrical energy via the piezoelectric effect.
BookDOI
Piezoelectric and Acoustic Materials for Transducer Applications
Ahmad Safari,E. Koray Akdogan +1 more
TL;DR: In this article, the authors presented a detailed analysis of Piezoelectric Transducers for Sonar Applications. And they proposed a method to construct a three-dimensional piezelectric fiber composite material for medical transducers, which can be used for medical diagnosis and NDE.
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Towards a piezoelectric vibration-powered microgenerator
TL;DR: In this paper, an inertial generator was developed that uses thick-film piezoelectric technologies to produce electrical power from vibrations in the environment of the device and validates the concept, and produces an output of 3uW.
Journal ArticleDOI
Micromachined PZT cantilever based on SOI structure for low frequency vibration energy harvesting
Dongna Shen,Jung-Hyun Park,Joo Hyon Noh,Song-Yul Choe,Seung-Hyun Kim,Howard C. Wikle,Dong-Joo Kim +6 more
TL;DR: In this paper, a PZT piezoelectric cantilever with a micromachined Si proof mass is designed and fabricated for a low frequency vibration energy harvesting application.
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Low-frequency piezoelectric energy harvesting prototype suitable for the MEMS implementation
TL;DR: A low-frequency piezoelectric energy harvester based on impact vibration assembled with a compliant driving beam and two rigid generating beams, which is especially suitable for a compact MEMS approach.