Design of Acoustic Energy Harvesting Unit Using Piezo-Electric Diaphragm

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F20%3A00007143" target="_blank" >RIV/46747885:24210/20:00007143 - isvavai.cz</a>
Result on the web
<a href="https://www.scientific.net/MSF" target="_blank" >https://www.scientific.net/MSF</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/MSF.986.109" target="_blank" >10.4028/www.scientific.net/MSF.986.109</a>

Result language
angličtina
Original language name
Design of Acoustic Energy Harvesting Unit Using Piezo-Electric Diaphragm
Original language description
An Acoustic Energy Harvester was designed to convert sound energy produced from speakers at certain frequency to electric energy. The harvester used Piezo-electric buzzer. The design process followed an experimental approach. It included open circuit experiment as well as closed circuit experiments. The open circuit experiment aimed at finding a good initial guess for incident sound frequency for optimum energy harvesting while closed circuit experiment aimed at finding the suitable circuit electrical impedance that would maximise energy harvesting at the frequency obtained from the initial guess. The proposed design can harvest power of 0.043 µW, with voltage of 21 mV and current of 2.05 µA, at a power harvesting density of 2.8x(10)^(-9) W/cm^2. These results are achieved at incident sound of sound pressure level (SPL) of 118 dB and frequency of 466.2 Hz.
Czech name
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Czech description
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Project
<a href="/en/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybrid Materials for Hierarchical Structure</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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