Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"Piezoelectric membrane"”.
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Piezoelectric flexing and output voltage of a microchannel heat engine
In this thesis, a new model is formulated for a piezoelectric membrane and fluid motion in a microchannel heat engine. A new slug flow model is developed for droplet motion in a circular cross-section channel. The model includes friction, pressure, viscous and thermocapillary forces on the droplet. …
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Fluid transport and entropy production in electrochemical and microchannel droplet flows
… generate electrical energy from waste heat in a piezoelectric membrane by inducing mechanical deformation as a result of the droplet motion. Modeling, fabrication, and experimental measurement of a micro heat engine (MHE) are investigated in this study. Analytical and experimental results are …
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Design and Experimental Applications of Acoustic Metamaterials
… element (microphone) and an acoustic driver (piezoelectric membrane or speaker). The material properties are controlled by tuning the response of the unit cell to the incident wave. Several samples with interesting effective mass density and bulk modulus are presented. We conclude by …
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Generátorové snímače
Diplomová práce se zabývá generátorovými snímači, ve funkci zdroje energie. Tím, jak se požadavky na napájení mikroelektronických obvodů snižují, stávají se energetické zdroje z prostředí kolem snímače více perspektivní. Za poslední roky dosáhli baterie vyšších hodnot kapacity, stále je však …