TY - JOUR
T1 - Design and fabrication of bimorph transducer for optimal vibration energy harvesting
AU - Bedekar, Vishwas
AU - Oliver, Josiah
AU - Priya, Shashank
N1 - 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: [email protected]). digital object Identifier 10.1109/TUFFc.2010.1582
PY - 2010/7
Y1 - 2010/7
N2 - 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.
AB - 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.
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U2 - 10.1109/TUFFC.2010.1582
DO - 10.1109/TUFFC.2010.1582
M3 - Article
C2 - 20941885
AN - SCOPUS:77954797033
SN - 0885-3010
VL - 57
SP - 1513
EP - 1523
JO - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
JF - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
IS - 7
M1 - 5507654
ER -