Design, fabrication and characterization of a micromachined piezoelectric energy harvester excited by ambient vibrations

2013 ◽  
Author(s):  
Ali B. Alamin Dow ◽  
Achim Bittner ◽  
Ulrich Schmid ◽  
Nazir P. Kherani
Keyword(s):  
Energy Harvester ◽  
Ambient Vibrations ◽  
Piezoelectric Energy ◽  
Fabrication And Characterization

scholarly journals Fabrication and characterization of a piezoelectric energy harvester with clamped-clamped beams

AIP Advances ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 055028 ◽  
Author(s):  
Yan Cui ◽  
Menglin Yu ◽  
Shiqiao Gao ◽  
Xiangxin Kong ◽  
Wang Gu ◽  
...  
Keyword(s):  
Energy Harvester ◽  
Piezoelectric Energy ◽  
Clamped Beams ◽  
Fabrication And Characterization

scholarly journals Load Resistance Optimization of a Broadband Bistable Piezoelectric Energy Harvester for Primary Harmonic and Subharmonic Behaviors

2021 ◽  
Vol 13 (5) ◽  
pp. 2865 ◽  
Author(s):  
Sungryong Bae ◽  
Pilkee Kim
Keyword(s):  
Energy Harvester ◽  
Load Resistance ◽  
Oscillation Period ◽  
Ambient Vibration ◽  
Ambient Vibrations ◽  
Frequency Dependency ◽  
Energy Harvesters ◽  
Piezoelectric Energy ◽  
Optimal Load ◽  
Bistable Energy Harvester

In this study, optimization of the external load resistance of a piezoelectric bistable energy harvester was performed for primary harmonic (period-1T) and subharmonic (period-3T) interwell motions. The analytical expression of the optimal load resistance was derived, based on the spectral analyses of the interwell motions, and evaluated. The analytical results are in excellent agreement with the numerical ones. A parametric study shows that the optimal load resistance depended on the forcing frequency, but not the intensity of the ambient vibration. Additionally, it was found that the optimal resistance for the period-3T interwell motion tended to be approximately three times larger than that for the period-1T interwell motion, which means that the optimal resistance was directly affected by the oscillation frequency (or oscillation period) of the motion rather than the forcing frequency. For broadband energy harvesting applications, the subharmonic interwell motion is also useful, in addition to the primary harmonic interwell motion. In designing such piezoelectric bistable energy harvesters, the frequency dependency of the optimal load resistance should be considered properly depending on ambient vibrations.

scholarly journals Simulation, Fabrication and Characterization of Robust Vibrational Energy Harvester

2015 ◽  
Vol 120 ◽  
pp. 349-354 ◽  
Author(s):  
Surjitsinh Chauhan ◽  
Bernhard Müller ◽  
Ulrich Mescheder
Keyword(s):  
Energy Harvester ◽  
Vibrational Energy ◽  
Fabrication And Characterization

Electro-mechanical characterization of a piezoelectric energy harvester

2019 ◽  
Vol 253 ◽  
pp. 113585 ◽  
Author(s):  
Mohamadreza Khalili ◽  
Ayetullah B. Biten ◽  
Gopal Vishwakarma ◽  
Sara Ahmed ◽  
A.T. Papagiannakis
Keyword(s):  
Energy Harvester ◽  
Mechanical Characterization ◽  
Piezoelectric Energy

Modeling and optimization of a wide-band piezoelectric energy harvester for smart building structures

2020 ◽  
Vol 11 (02) ◽  
pp. 2050009
Author(s):  
Prateek Asthana ◽  
Gargi Khanna
Keyword(s):  
Resonant Frequency ◽  
Energy Harvester ◽  
Proof Mass ◽  
Mechanical Energy ◽  
Wide Band ◽  
Electrical Energy ◽  
Sensor Nodes ◽  
Ambient Vibrations ◽  
Band Energy ◽  
Piezoelectric Energy

Piezoelectric energy harvesting refers to conversion of mechanical energy into usable electrical energy. In the modern connected world, wireless sensor nodes are scattered around the environment. These nodes are powered by batteries. Batteries require regular replacement, hence energy harvesters providing continuous autonomous power are used to power these sensor nodes. This work provides two different fixation modes for the resonant frequency for the two modes. Variation in geometric parameter and their effect on resonant frequency and output power have been analyzed. These harvesters capture a wide-band of ambient vibrations and convert them into usable electrical energy. To capture random ambient vibrations, the harvester used is a wide-band energy harvester based on conventional seesaw mechanism. The proposed structure operates on first two resonant frequencies in comparison to the conventional cantilever system working on first resonant frequency. Resonance frequency, as well as response to a varying input vibration frequency, is carried out, showing better performance of seesaw cantilever design. In this work, modeling of wide-band energy harvester with proof mass is being performed. Position of proof mass plays a key role in determining the resonant frequency of the harvester. Placing the proof mass near or away from fixed end results in increase and decrease in stress on the piezoelectric layer. Hence, to avoid the breaking of cantilever, the position of proof mass has been analyzed.

scholarly journals Simulation and Characterization of a Nonlinear Dual-Frequency Piezoelectric Energy Harvester

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 908 ◽  
Author(s):  
Sofiane Bouhedma ◽  
Yuhang Zheng ◽  
Dennis Hohlfeld
Keyword(s):  
Energy Harvester ◽  
Frequency Tuning ◽  
Dual Frequency ◽  
Piezoelectric Energy ◽  
Frequency Agile ◽  
Classical Vibration ◽  
Multi Mode

In this paper, we present a concept, simulation and characterization results of a dual-frequency piezoelectric energy harvester with magnetic frequency tuning capabilities. We demonstrate that the frequency-agile multi-mode capability enables the device to harvest on a wider range of operating frequencies than classical vibration harvesters.

Fabrication and Characterization of a Lead Zirconate Titanate Micro Energy Harvester Based on Eutectic Bonding

2011 ◽  
Vol 28 (6) ◽  
pp. 068103 ◽  
Author(s):  
Yi-Gui Li ◽  
Jian Sun ◽  
Chun-Sheng Yang ◽  
Jing-Quan Liu ◽  
Susumu Sugiyama ◽  
...  
Keyword(s):  
Lead Zirconate Titanate ◽  
Energy Harvester ◽  
Lead Zirconate ◽  
Eutectic Bonding ◽  
Zirconate Titanate ◽  
Fabrication And Characterization
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