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Simulations, fabrication, and characterization of d31 mode piezoelectric vibration energy harvester
Microsystem Technologies, 2019This paper presents the development work on d31 mode piezoelectric vibration energy harvester. The device structure consists of a fixed-free type cantilever beam with a seismic mass attached at the free end of the beam. On top of the cantilever beam, a ZnO piezoelectric layer is sandwiched between two metal electrodes.
Renu Singh, B. D. Pant, Ankush Jain
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Low frequency PVDF piezoelectric energy harvester with combined d31 and d33 operating modes
The 8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2013This paper reports the design, test and application of a novel low frequency piezoelectric energy harvester. To achieve high output voltage at low frequency, both d31 and d33 modes of polyvinylidene fluoride (PVDF) are utilized in this device. Output voltage of the device are tested under different frequencies and accelerations.
Mengdi Han +4 more
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Current Applied Physics, 2011
Abstract We report fabrication by a traditional ceramics process of a dome-like actuator composed of two PZT piezoelectric ceramics, one doped with donors (La 3+ and Nb 5+ ) and the other with acceptors (Fe 3+ and Ni 2+ ). The results show that at 120 °C, the resistivity of PZT doped with La 3+ and Nb 5+ is three orders of magnitude more than ...
Haiyan Chen, Chunhua Fan, Zhongyan Meng
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Abstract We report fabrication by a traditional ceramics process of a dome-like actuator composed of two PZT piezoelectric ceramics, one doped with donors (La 3+ and Nb 5+ ) and the other with acceptors (Fe 3+ and Ni 2+ ). The results show that at 120 °C, the resistivity of PZT doped with La 3+ and Nb 5+ is three orders of magnitude more than ...
Haiyan Chen, Chunhua Fan, Zhongyan Meng
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Zaštita od buke cestovnog prometa na dionici ceste D31 - spoj D31 na D30 i na D408
2010Za dionicu ceste D31 – spoj na D30 i na D408 izrađen je idejni projekt zaštite od buke. Izrađen je 3D modela prostora za navedenu dionicu. Primjenom računalnog programa LIMA koristeći njemačku i francusku metodu proračuna određene su razine buke. Predviđena vrsta zaštite su zidovi za zaštitu od buke za koje je izvršena optimizaciju njihovih visina i ...
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Temperature behavior of the complex piezoelectric d31 coefficient in modified lead titanate ceramics
Materials Letters, 1986Piezoelectric properties of modified lead titanate ceramics were investigated in an effort to explain the large electromechanical anisotropy observed in these materials. While the thickness coupling factor is approximately constant with temperature, the planar coupling factor becomes zero near room temperature, probably indicating a change in sign of ...
D. Damjanovic +3 more
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The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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Sensors and Actuators A: Physical, 1998
Abstract This paper describes a simple and inexpensive method for evaluating the transverse piezoelectric coefficient ( d 31 ) of piezoelectric thin films. The technique is based upon the flexure of a coated substrate which imparts an ac two-dimensional stress to the piezoelectric film.
J.F. Shepard +2 more
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Abstract This paper describes a simple and inexpensive method for evaluating the transverse piezoelectric coefficient ( d 31 ) of piezoelectric thin films. The technique is based upon the flexure of a coated substrate which imparts an ac two-dimensional stress to the piezoelectric film.
J.F. Shepard +2 more
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Road traffic noise abatement - the case of State Road D31
2011Traffic noise and its influence on the environment is an important factor to be considered when it comes to developing, upgrading, and maintaining national road networks. This paper describes the design process of the road traffic noise protection barriers on the planned section of state road D31, a road that will help to connect the fast growing city ...
Ahac, Saša, Dragčević, Vesna
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