Large power amplification of a piezoelectric energy harvester excited by random vibrations

Wang, Z.; Elfrink, R.; Vullers, Ruud; Acht, Victor van; Tutelaers, M.; Matova, S.; Oudenhoven, Jfm Jos; Schaijk, R. van

doi:10.1109/memsys.2013.6474188

Cited by 11 publications

(5 citation statements)

References 1 publication

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“…There are several methods that can be utilised, may it be by altering the shape of the piezoelectric specimen, changing its geometry and incorporating multiple layers of piezoelectric material. These advancements can be observed from the references [4], [5], [6], [7], [8], [9] and [10]. In all cases, we can observe that the structure or configuration of the energy harvester is modified in some way.…”

Section: Modification On Piezoelectric Energy Harvestersmentioning

confidence: 75%

PZT Piezoelectric Energy Harvester Enhancement Using Slotted Aluminium Beam

Lam

Salleh

2014

AMR

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This paper presents work on improving piezoelectric energy harvesters. Harvesting energy from vibrations has received massive attention due to it being a renewable energy source that has a wide range of applications. Over the years of development, there is always research to further improve and optimise piezoelectric energy harvesters. For this paper, the piezoelectric specimen is made of PZT (Lead Zirconate Titanate), brass reinforced and has 31.8mm length, 12.7mm width and 0.511mm thick. An external beam is implemented to provide deflection amplification which in turn increases the output of the energy harvester. Depending on the configuration of the external beam, it can amplify output voltage from 100% to 300%.

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Section: Modification On Piezoelectric Energy Harvestersmentioning

confidence: 75%

PZT Piezoelectric Energy Harvester Enhancement Using Slotted Aluminium Beam

Lam

Salleh

2014

AMR

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“…Power generation from repetitive shock excitation has been experimentally demonstrated previously [21][22]. In reality, repetitive shock excitation can be found at the contact patch The authors are with the Holst Centre/Stichting imec Nederland, 5656 AE Eindhoven, The Netherlands (e-mail: ziyang.wang@imec-nl.nl; rene.elfrink@imec-nl.nl; madelon.rovers@imec-nl.nl; svetla.matova@ imec-nl.nl; rob.vanschaijk@imec.be; michael.renaud@imec-nl.nl).…”

Section: Introductionmentioning

confidence: 99%

Shock Reliability of Vacuum-Packaged Piezoelectric Vibration Harvester for Automotive Application

Wang

Elfrink

Rovers

et al. 2014

J. Microelectromech. Syst.

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This paper reports for the first time the shock reliability of vacuum-packaged piezoelectric vibration harvesters for automotive application. Experimental study on >80 devices shows that the failure is induced by the impact between seismic mass and glass package. The statistical results obtained for various types of harvesters have shown a trend of higher shock reliability for a higher resonance frequency. The influence of beam thickness on the shock reliability is then discussed. The trade-off between the power output and shock reliability is elaborated. To further improve the reliability to the level of automotive application, the idea of stepped cavity is discussed and implemented. The experimental results confirmed a significantly enhanced reliability increased by ∼50%, up to maximum 2000 g, for the same type of device under shock excitations. [2013-0184] Index Terms-Energy harvester, piezoelectric, shock reliability.

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“…In previous work, Elfrink et al [1] demonstrated a MEMS harvester powered wireless sensor node with the harvester generating 10 W DC power under steady sinusoidal conditions. This work was further progressed by the same group towards the development of a harvester-powered wireless sensor under noisy conditions generating 28.9 W ac power across a matched load for a TPMS application [2]. However, though subsequent work demonstrated MEMS harvesters delivering sufficient DC power (10's W) for automotive applications, concerns around reliability under high shock and vibration have remained [3].…”

Section: Introductionmentioning

confidence: 99%

MEMS Piezoelectric Energy Harvester Powered Wireless Sensor Module Driven by Noisy Base Excitation

Jia

Arroyo

et al. 2019

2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems &Amp; Eurosensors XXXIII (TRANSDUCERS &Am

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Despite recent advances in MEMS vibration energy harvesting and ultra-low power wireless sensors, designing a wireless sensor system entirely powered by a single MEMS device under noisy base excitation has remained a challenge. This paper presents a wireless sensor system co-integrated with a single MEMS piezoelectric vibration energy harvester chip excited by band-limited large amplitude noisy vibration characteristic of an automotive application. The use of soft stoppers in the MEMS package enables the harvesters to operate at an excitation level of 10 g(rms). A custom thick AlN (Aluminum Nitride) piezoelectric process is employed to fabricate the MEMS harvesters with a single MEMS chip generating 179 μW rectified power under these excitation conditions. A low-power wireless sensor module and a receiver module were also designed and demonstrated in this work. Experiments show that the wireless sensor module can be powered solely by the MEMS energy harvester commencing from the cold state. Successful wireless data transmission and receival of sensor data packets are recorded under representative conditions.

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Large power amplification of a piezoelectric energy harvester excited by random vibrations

Cited by 11 publications

References 1 publication

PZT Piezoelectric Energy Harvester Enhancement Using Slotted Aluminium Beam

PZT Piezoelectric Energy Harvester Enhancement Using Slotted Aluminium Beam

Shock Reliability of Vacuum-Packaged Piezoelectric Vibration Harvester for Automotive Application

MEMS Piezoelectric Energy Harvester Powered Wireless Sensor Module Driven by Noisy Base Excitation

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