Improved Performances of Acoustic Energy Harvester Fabricated Using Sol/Gel Lead Zirconate Titanate Thin Film

Kimura, Syo; Tomioka, Syungo; Iizumi, Satoshi; Tsujimoto, Kyohei; Sugou, Tomohisa; Nishioka, Yasushiro

doi:10.7567/jjap.50.06gm14

Cited by 19 publications

(8 citation statements)

References 22 publications

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“…Acoustic energy is another potential source for power generation. The increasing research studies about acoustic energy harvesting have been reported [12][13][14][15][16][17][18]. The Helmholtz resonator is widely used in the acoustic energy harvester systems since it can largely amplify the acoustic pressure in its cavity [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Tunable acoustic energy harvester using Helmholtz resonator and dual piezoelectric cantilever beams

Yang

Wen

et al. 2014

2014 IEEE International Ultrasonics Symposium

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A tunable acoustic energy harvester consisting of dual piezoelectric cantilever beams and a Helmholtz resonator with a perforated backplate is proposed. The tunability of the operation frequency band can be achieved not only via simply adjusting the radius (r) of the aperture due to the strong dependence of resonance frequencies of the Helmholtz resonator on the acoustic impedance affected by r, but also by changing the distance (d) between piezoelectric cantilever beams because of their magnetic force interaction. Experimental results show that as r (or d) increases from 0 (or 1.4) to 1.0 (or 3.4) cm, the frequency band is broadened and varies from 175.5~198 (or 175.5~213) Hz to 170.5~221 (or 161~203) Hz. The average ratio of the adjusted frequency bandwidth to r (or d) can reach 28 (or 2.25) Hz/cm over the range of 125~250 Hz.

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Section: Introductionmentioning

confidence: 99%

Tunable acoustic energy harvester using Helmholtz resonator and dual piezoelectric cantilever beams

Yang

Wen

et al. 2014

2014 IEEE International Ultrasonics Symposium

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“…However, among the other reported ambient energy sources available in the environment, such as solar, 33,34 wind, 35 ocean waves, 36 thermal, 37 strain‐based, 38,39 acoustic, 40 fluid flow, 41 nuclear reaction, 42 and bioenergy, 43,44 harvesting energy from mechanical vibrations is one of the most promising technology in microsystems applications 45 . Furthermore, mechanical vibrations from moving bodies, such as humans, 46,47 machines, 48 vehicles, 49 bridges, 50 buildings, 51 and other civil entities, have better power‐producing capabilities owing to its versatility, high power density, and abundant presence, and thus allowing sustainable operation of the microsystems 52 .…”

Section: Introductionmentioning

confidence: 99%

Vibration‐based piezoelectric, electromagnetic, and hybrid energy harvesters for microsystems applications: A contributed review

et al. 2020

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Wireless sensor nodes (WSNs) and embedded microsystems have recently gained tremendous traction from researchers due to their vast sensing and monitoring applications in various fields including healthcare, academic, finance, environment, military, agriculture, retail, and consumer electronics. An essential requirement for the sustainable operation of WSN is the presence of an uninterrupted power supply; which is currently obtained from electrochemical batteries that suffer from limited life cycles and are associated with serious environmental hazards. An alternative to replacing batteries of WSNs; either the direct replacement or to facilitate battery regular recharging, is by looking into energy harvesting for its sustainable drive. Energy harvesting is a technique by which ambient energy can be converted into useful electricity, particularly for low-power WSNs and consumer electronics. In particular, vibration-based energy harvesting has been a key focus area, due to the abundant availability of vibration-based energy sources that can be easily harvested. In vibration-based energy harvesters (VEHs), different optimization techniques and design considerations are taken in order to broaden the operation frequency range through multi-resonant states, increase multi-degree-of-freedom, provide nonlinear characteristics, and implement the hybrid conversion. This comprehensive review summarizes recent developments in VEHs with a focus on piezoelectric, electromagnetic, and hybrid piezoelectric-electromagnetic energy harvesters. Various vibration and motion-induced energy harvesting prototypes have been reviewed and discussed in detail with respect to device architecture, conversion mechanism, performance parameters, and implementation. Overall sizes of most of the reported piezoelectric energy harvesters are in the millimeter to centimeter scales, with resonant frequencies in the range of 2-13 900 Hz. Maximum energy conversion for electromagnetic energy harvesters can potentially reach up to 778.01 μW/cm 3. The power produced by the reported hybrid energy harvesters (HEHs) is in the range of 35.43-4900 μW. Due to the combined piezoelectric-electromagnetic energy conversion in HEHs, these systems are capable of producing the highest power densities.

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“…Horowitz et al have proposed a harvester design utilizing the Helmholtzresonance phenomena to convert acoustic waves between 1-4 kHz, and a power density of 0.34 μW/cm 2 u under 149 dB has been reported [5]. Kimura et al developed a circular diaphragm harvester for audible sound and demonstrated improved power density when operating in the third resonance mode [6].…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Pressure Energy Harvesters Using Circular Diaphragms With Concentric Ring-Boss Structures

Beker¹,

Eovino²,

Benet³

et al. 2016

2016 Solid-State, Actuators, and Microsystems Workshop Technical Digest

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This paper describes the design, fabrication and testing results of aluminum nitride piezoelectric micromachined circular diaphragm energy harvesters with concentric ring-boss structures to convert pulsed pressure to electrical power with high efficiency. Compared to the state-of-the-art, the concentric-ring-boss harvesters (CRBH) produce multiple strained regions for: (1) more effective electrode areas; (2) high charge extraction rates; and (3) high power outputs. Finite element modeling is used to evaluate the effectiveness of the proposed design by comparing stress and stretching energy of various designs. The conventional single-boss and concentric ring-boss harvesters have been fabricated and tested under a mean pressure of 1.5 kPa with 1 kHz frequency. Experimental results show the ring-boss and the conventional single-boss harvesters can generate power of 1.3 and 0.82 μW, respectively. As such, the CRBH is 1.6X higher in energy conversion efficiency and power density as compared to single-boss design of similar dimensions.

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Improved Performances of Acoustic Energy Harvester Fabricated Using Sol/Gel Lead Zirconate Titanate Thin Film

Cited by 19 publications

References 22 publications

Tunable acoustic energy harvester using Helmholtz resonator and dual piezoelectric cantilever beams

Tunable acoustic energy harvester using Helmholtz resonator and dual piezoelectric cantilever beams

Vibration‐based piezoelectric, electromagnetic, and hybrid energy harvesters for microsystems applications: A contributed review

Piezoelectric Pressure Energy Harvesters Using Circular Diaphragms With Concentric Ring-Boss Structures

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