Design and fabrication of bimorph transducer for optimal vibration energy harvesting

Vishwas Bedekar; Josiah Oliver; Shashank Priya

doi:10.1109/TUFFC.2010.1582

Design and fabrication of bimorph transducer for optimal vibration energy harvesting

Vishwas Bedekar, Josiah Oliver, Shashank Priya

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

High energy density piezoelectric composition corresponding to 0.9Pb(Zr_0.56Ti_0.44)O₃-0.1Pb[(Zn _0.8/3Ni_0.2/3) Nb_2/3]O₃ + 2 mol% MnO₂ (PZTZNN) and 0.8[Pb(Zr_0.52Ti_0.48)O ₃]-0.2[Pb(Zn_1/3Nb_2/3)O₃] (PZTPZN) were synthesized by conventional ceramic processing technique using three different sintering profiles. Plates of the sintered samples were used to fabricate the piezoelectric bimorphs with optimized dimensions to exhibit resonance in the loaded condition in the range of ∼200 Hz. An analytical model for energy harvesting from bimorph transducer was developed which was confirmed by experimental measurements. The results of this study clearly show that power density of bimorph transducer can be enhanced by increasing the magnitude of product (d · g), where d is the piezoelectric strain constant and g is the piezoelectric voltage constant.

Original language	English (US)
Article number	5507654
Pages (from-to)	1513-1523
Number of pages	11
Journal	IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume	57
Issue number	7
DOIs	https://doi.org/10.1109/TUFFC.2010.1582
State	Published - Jul 2010

All Science Journal Classification (ASJC) codes

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

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10.1109/TUFFC.2010.1582

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title = "Design and fabrication of bimorph transducer for optimal vibration energy harvesting",

abstract = "High energy density piezoelectric composition corresponding to 0.9Pb(Zr0.56Ti0.44)O3-0.1Pb[(Zn 0.8/3Ni0.2/3) Nb2/3]O3 + 2 mol% MnO2 (PZTZNN) and 0.8[Pb(Zr0.52Ti0.48)O 3]-0.2[Pb(Zn1/3Nb2/3)O3] (PZTPZN) were synthesized by conventional ceramic processing technique using three different sintering profiles. Plates of the sintered samples were used to fabricate the piezoelectric bimorphs with optimized dimensions to exhibit resonance in the loaded condition in the range of ∼200 Hz. An analytical model for energy harvesting from bimorph transducer was developed which was confirmed by experimental measurements. The results of this study clearly show that power density of bimorph transducer can be enhanced by increasing the magnitude of product (d · g), where d is the piezoelectric strain constant and g is the piezoelectric voltage constant.",

author = "Vishwas Bedekar and Josiah Oliver and Shashank Priya",

note = "Funding Information: Manuscript received november 22, 2009; accepted March 28, 2010. This research was sponsored by Texas MicroPower, dallas, TX, and the national Institute of standards and Technology. The authors are with the center for Energy Harvesting Materials and systems (cEHMs) department of Mechanical Engineering, Virginia Tech, Blacksburg, Va (e-mail: spriya@vt.edu). digital object Identifier 10.1109/TUFFc.2010.1582",

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Design and fabrication of bimorph transducer for optimal vibration energy harvesting

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