Piezoelectric Energy Harvesting with a Clamped Circular Plate: Experimental Study

Kim, Sunghwan; Clark, William W.; Wang, Qing-Ming

doi:10.1177/1045389x05054043

Cited by 126 publications

(60 citation statements)

References 7 publications

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“…This device introduces the very attractive possibility of a non-resonant structure that will respond to any frequency movement of sufficient acceleration. Energy harvesting using circular piezoelectric plates bonded to a clamped circular substrate has also been studied by Kim et al [78,79]. This study has used patterned electrodes and differentially poled regions of the piezoelectric plate to ensure the voltage from the each region are the same polarity despite the opposite stresses induced by an applied pressure (as shown in figure 13).…”

Section: Other Piezoelectric Generatorsmentioning

confidence: 99%

Energy harvesting vibration sources for microsystems applications

Beeby

Tudor

White

2006

Meas. Sci. Technol.

2,637

1,468

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This paper reviews the state-of-the art in vibration energy harvesting for wireless, self-powered microsystems. Vibration-powered generators are typically, although not exclusively, inertial spring and mass systems. The characteristic equations for inertial-based generators are presented, along with the specific damping equations that relate to the three main transduction mechanisms employed to extract energy from the system. These transduction mechanisms are: piezoelectric, electromagnetic and electrostatic. Piezoelectric generators employ active materials that generate a charge when mechanically stressed. A comprehensive review of existing piezoelectric generators is presented, including impact coupled, resonant and human-based devices. Electromagnetic generators employ electromagnetic induction arising from the relative motion between a magnetic flux gradient and a conductor. Electromagnetic generators presented in the literature are reviewed including large scale discrete devices and wafer-scale integrated versions. Electrostatic generators utilize the relative movement between electrically isolated charged capacitor plates to generate energy. The work done against the electrostatic force between the plates provides the harvested energy. Electrostatic-based generators are reviewed under the classifications of in-plane overlap varying, in-plane gap closing and out-of-plane gap closing; the Coulomb force parametric generator and electret-based generators are also covered. The coupling factor of each transduction mechanism is discussed and all the devices presented in the literature are summarized in tables classified by transduction type; conclusions are drawn as to the suitability of the various techniques.

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Section: Other Piezoelectric Generatorsmentioning

confidence: 99%

Energy harvesting vibration sources for microsystems applications

Beeby

Tudor

White

2006

Meas. Sci. Technol.

2,637

1,468

View full text Add to dashboard Cite

show abstract

“…As a result, piezoelectric materials for scavenging energy from ambient vibration sources have recently seen a dramatic rise in use for power harvesting. This includes the use of resonant piezoelectric-based structures of cantilever beam configuration [9][10][11][12][13][14][15] as well as plate (membrane) configuration [16][17][18][19]. Other harvesting schemes include the use of long strips of piezoelectric polymers in ocean or river-water flows [20,21], the use of piezoelectric 'cymbal' transducers [22,23], and the use of piezoelectric windmill for generating electric power from wind energy [24].…”

Section: Introductionmentioning

confidence: 99%

Efficiency of energy conversion for a piezoelectric power harvesting system

Shu

Lien

2006

J. Micromech. Microeng.

284

204

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This paper studies the energy conversion efficiency for a rectified piezoelectric power harvester. An analytical model is proposed, and an expression of efficiency is derived under steady-state operation. In addition, the relationship among the conversion efficiency, electrically induced damping and ac-dc power output is established explicitly. It is shown that the optimization criteria are different depending on the relative strength of the coupling. For the weak electromechanical coupling system, the optimal power transfer is attained when the efficiency and induced damping achieve their maximum values. This result is consistent with that observed in the recent literature. However, a new finding shows that they are not simultaneously maximized in the strongly coupled electromechanical system.

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“…Accordingly, a cantilever beam with the piezoelectric patches attached in either a unimorph or a bimorph form is the most common configuration in energy harvesting. Others utilized the shape of membranes under pressure loading [41,44], and plates with a Helmholtz resonator under fluid/acoustic loading [45]. Recently, the development of MEMS-scale micro power generator has received considerable attention, as piezoelectric materials are suitable for micro-fabrication [33, 46 , 47 , 48 ].…”

Section: Energy Reservoirs Scavenged Power Sourcesmentioning

confidence: 99%

Energy Harvesting for Structural Health Monitoring Sensor Networks

Park¹,

Farrar²,

Todd³

et al. 2007

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This paper reviews the development of energy harvesting for low-power embedded structural health monitoring (SHM) sensing systems. A statistical pattern recognition paradigm for SHM is first presented and the concept of energy harvesting for embedded sensing systems is addressed with respect to the data acquisition portion of this paradigm. Next, various existing and emerging sensing modalities used for SHM and their respective power requirements are summarized followed by a discussion of SHM sensor network paradigms, power requirements for these networks and power optimization strategies. Various approaches to energy harvesting and energy storage are discussed and limitations associated with the current technology are addressed. The paper concludes by defining some future research directions that are aimed at transitioning the concept of energy harvesting for embedded SHM sensing systems from laboratory research to field-deployed engineering prototypes. Finally, it is noted that much of the technology discussed herein is applicable to powering any type of low-power embedded sensing system regardless of the application.

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Piezoelectric Energy Harvesting with a Clamped Circular Plate: Experimental Study

Cited by 126 publications

References 7 publications

Energy harvesting vibration sources for microsystems applications

Energy harvesting vibration sources for microsystems applications

Efficiency of energy conversion for a piezoelectric power harvesting system

Energy Harvesting for Structural Health Monitoring Sensor Networks

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