Sealed piezoelectric energy harvester driven by hyperbaric air load

Wang, Yingting; Wang, Liang; Cheng, Tinghai; Song, Zhaoyang; Qin, Feng

doi:10.1063/1.4940199

Cited by 27 publications

(14 citation statements)

References 22 publications

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“…The harvester prototype was composed by a flexible PZT-5H patch and was tested under different experimental conditions of pressure, load resistance, flow and cycle time. The results showed an optimal output power of 3.41 mW across 200 kΩ resistor, under 0.4 MPa and 365 L/min of pressure and flow respectively, during 0.8 s cycle [120].…”

Section: Piezoelectric Energy Harvesting Based On Ceramicsmentioning

confidence: 98%

3.9 Piezoelectric Energy Production

Nunes-Pereira

Lanceros‐Méndez

2018

Comprehensive Energy Systems

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The concept of piezoelectric energy production is based on energy harvesting devices using as generation materials single crystals, ceramics, polymers and composites. These production systems can harvest wasted environmental energy and convert it essentially into electrical energy. There are different nano-and micro-scale power harvesters which are increasingly useful for powering mobile electronics and low power devices, even in hardly accessible areas. Despite many efforts in the development of new materials, the most widely used materials in device applications remain the ceramics of the PZT family, since they still present the higher output performances in the range of mW of generated power.

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Section: Piezoelectric Energy Harvesting Based On Ceramicsmentioning

confidence: 98%

3.9 Piezoelectric Energy Production

Nunes-Pereira

Lanceros‐Méndez

2018

Comprehensive Energy Systems

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“…The associate editor coordinating the review of this manuscript and approving it for publication was Jingfeng Song . convert ambient air kinetic energy into electricity for wireless sensors [17]- [20].…”

Section: Previous Researchers Have Designed Effective Systems Tomentioning

confidence: 99%

Design and Testing of Cantilevered PVDF Energy Harvester Based on the Coanda Effect

Gao

Wang

et al. 2020

IEEE Access

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Low-flow air has been attracted many researchers which can be transformed into electric energy by the piezoelectric materials. A flow amplifier device can be used to increase the performance of piezoelectric energy harvester excited by low-flow air. The Coanda effect theory has been analyzed based on the fast-moving air. To analyze the effect of the amplifier device and verify the feasibility of the proposed cantilevered PVDF energy harvester, we employed finite element simulation to analyze the flow distribution of the amplified flow air. Then the stress and potential distribution of PVDF film have been analyzed. A prototype of the cantilevered PVDF energy harvester is tested with different variables such as input air flow, pressure and cycle time. The test results show that the output voltage increases with increasing input air flow. The output voltage decreases slightly with increasing input cycle time. The peak voltage decreases as the distance between the prototype and the excitation source increases. Importantly, the output voltage for the amplified airflow is about three-times that of the non-amplified air flow. The maximal output voltage and power are 12.80 V and 19.89 µW at the pressure of 0.2 MPa and a flow rate of 200 L/min, respectively. INDEX TERMS Coanda effect, PVDF energy harvester, amplified air flow, simple harmonic oscillation.

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“…Though the piezoelectric effect was discovered more than a century ago, research on piezoelectric is still ongoing [1][2][3][4][5] and attracts attention in many areas [6][7][8][9][10]. One of the areas is actuation.…”

Section: Introductionmentioning

confidence: 99%

Design, Analysis, and Experiment on a Novel Stick-Slip Piezoelectric Actuator with a Lever Mechanism

Huang

Sun

2019

Micromachines

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A piezoelectric actuator using a lever mechanism is designed, fabricated, and tested with the aim of accomplishing long-travel precision linear driving based on the stick-slip principle. The proposed actuator mainly consists of a stator, an adjustment mechanism, a preload mechanism, a base, and a linear guide. The stator design, comprising a piezoelectric stack and a lever mechanism with a long hinge used to increase the displacement of the driving foot, is described. A simplified model of the stator is created. Its design parameters are determined by an analytical model and confirmed using the finite element method. In a series of experiments, a laser displacement sensor is employed to measure the displacement responses of the actuator under the application of different driving signals. The experiment results demonstrate that the velocity of the actuator rises from 0.05 mm/s to 1.8 mm/s with the frequency increasing from 30 Hz to 150 Hz and the voltage increasing from 30 V to 150 V. It is shown that the minimum step distance of the actuator is 0.875 μm. The proposed actuator features large stroke, a simple structure, fast response, and high resolution.

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Sealed piezoelectric energy harvester driven by hyperbaric air load

Cited by 27 publications

References 22 publications

3.9 Piezoelectric Energy Production

3.9 Piezoelectric Energy Production

Design and Testing of Cantilevered PVDF Energy Harvester Based on the Coanda Effect

Design, Analysis, and Experiment on a Novel Stick-Slip Piezoelectric Actuator with a Lever Mechanism

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