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Model and Characterization of a Press-Button-Type Piezoelectric Energy Harvester
- Source :
- IEEE/ASME Transactions on Mechatronics. 24:132-143
- Publication Year :
- 2019
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2019.
-
Abstract
- In this paper, a press-button-type piezoelectric energy harvester (PEH) is presented. The proposed device is composed of a piezoelectric bender, four magnets, a button, and a reverted spring. The proposed structure is triggered by an impact driven by magnetic force, so this novel trigger mechanism enhances its optimal power output. Based on the piezoelectricity, beam theory, and the vibration theory, a complete numerical model was developed to simulate and predict the output voltage. A prototype was fabricated for verification, and the characterization of the energy harvester was measured. The harvested power and energy by a single impact was recorded as ${\text{20 mW}}$ and ${\text{190}\,\mu \text{J}}$ , respectively, at an optimum resistive load of ${\text{30 k}\Omega }$ . The measured data agreed with the results of numerical model. Finally, the piezoelectric energy charger extractor (PECE) was used to store the harvested energy. The energy stored in a capacitor of ${\text{1}\,\mu \text{F}}$ was ${\text{42.1}}\,{\mu \text{J}}$ .
- Subjects :
- Physics
0209 industrial biotechnology
02 engineering and technology
Type (model theory)
Omega
Piezoelectricity
Computer Science Applications
Magnetic field
law.invention
Capacitor
020901 industrial engineering & automation
Control and Systems Engineering
law
Electrical and Electronic Engineering
Atomic physics
Energy harvesting
Energy (signal processing)
Voltage
Subjects
Details
- ISSN :
- 1941014X and 10834435
- Volume :
- 24
- Database :
- OpenAIRE
- Journal :
- IEEE/ASME Transactions on Mechatronics
- Accession number :
- edsair.doi...........6d87ea3e9870b63ea38e97bc8dbae47a