Powering autonomous wireless sensors with miniaturized piezoelectric based energy harvesting devices for NDT applications

Férin, Guillaume; Hoang, Trang; Bantignies, Claire; Khanh, Hung Le; Flesch, Etienne; An, Ning

doi:10.1109/ultsym.2015.0534

Cited by 6 publications

(7 citation statements)

References 5 publications

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“…Regarding Curie temperature (see Table 1), BHT5 samples are suitable for energy harvesting applications at room temperature. Nevertheless, according to Table 2, leaded piezoelectric materials are almost three times more efficient regarding k 2 13 and are almost four times efficient in terms of FOM than BHT5 samples.…”

Section: Partial Tensors Reconstructionmentioning

confidence: 99%

“…Both the BHT5-SS and SG samples show promising electromechanical properties for applications in ultrasonic transduction, with k t values of up to 53% and d 33 values of up to 300 pC/N, in line with our previous study [10] and close to those of NAVYIII (Table 1). As for cantilever-based vibration energy harvesters, the following electromechanical coupling coefficient k 2 13 can be used to describe the efficiency of the piezoelectric material in converting mechanical energy into electrical energy [42]:…”

Section: Partial Tensors Reconstructionmentioning

confidence: 99%

“…Bimorph cantilever PEH requires the development of few hundred micrometer-thick piezoelectric layers. That latter can be achieved by thinning bulk ceramics [1,2], electrophoretic deposition (EPD) [3], or by composite sol-gel deposition [4].…”

Section: Introductionmentioning

confidence: 99%

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BaHf0.05Ti0.95O3 Ceramics from Sol–Gel and Solid-State Processes: Application to the Modelling of Piezoelectric Energy Harvesters

Brault,

Boy,

Levassort

et al. 2024

Materials

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A typical piezoelectric energy harvester is a bimorph cantilever with two layers of piezoelectric material on both sides of a flexible substrate. Piezoelectric layers of lead-based materials, typically lead zirconate titanate, have been mainly used due to their outstanding piezoelectric properties. However, due to lead toxicity and environmental problems, there is a need to replace them with environmentally benign materials. Here, our main efforts were focused on the preparation of hafnium-doped barium titanate (BaHfxTi1−xO3; BHT) sol–gel materials. The original process developed makes it possible to obtain a highly concentrated sol without strong organic complexing agents. Sol aging and concentration can be controlled to obtain a time-stable sol for a few months at room temperature, with desired viscosity and colloidal sizes. Densified bulk materials obtained from this optimized sol are compared with a solid-state synthesis, and both show good electromechanical properties: their thickness coupling factor values are around 53% and 47%, respectively, and their converse piezoelectric coefficient values are around 420 and 330 pm/V, respectively. According to the electromechanical properties, the theoretical behavior in a bimorph configuration can be simulated to predict the resonance and anti-resonance frequencies and the corresponding output power values to help to design the final device. In the present case, the bimorph configuration based on BHT sol–gel material is designed to harvest ambient vibrations at low frequency (<200 Hz). It gives a maximum normalized volumetric power density of 0.03 µW/mm3/Hz/g2 at 154 Hz under an acceleration of 0.05 m/s2.

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Section: Partial Tensors Reconstructionmentioning

confidence: 99%

Section: Partial Tensors Reconstructionmentioning

confidence: 99%

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BaHf0.05Ti0.95O3 Ceramics from Sol–Gel and Solid-State Processes: Application to the Modelling of Piezoelectric Energy Harvesters

Brault,

Boy,

Levassort

et al. 2024

Materials

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“…This technology enables to convert mechanical energy available in the environment into useful electrical energy. This is a promising solution for reducing the battery dependency in autonomous wireless sensors networks, structural health monitoring applications [3], or implantable medical devices [4].…”

Section: Introductionmentioning

confidence: 99%

“…To overcome this limitation, a mechanical thinning process of bulk PZT material is a promising alternative solution. This technology proposes an efficient and miniaturised piezoelectric energy harvesting operating at low frequency (<100 Hz) [3]. As a matter of fact, the most common structure used in vibration energy harvesting is a clamped/free piezoelectric bimorph cantilever beam, which is constituted of two piezoelectric layers separated by an inner shim material (cf.…”

Section: Introductionmentioning

confidence: 99%

Parametric study of a thin piezoelectric cantilever for energy harvesting applications

Hoang

Poulin‐Vittrant

Férin

et al. 2017

Advances in Applied Ceramics

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Nowadays, bimorph piezoelectric cantilevers are commonly used in ambient vibrational piezoelectric energy harvesting. They are constituted of two thin layers of piezoelectric material separated by an inner shim material. To help the design process of these energy harvesting devices, analytical and numerical models have been developed. This work presents a parametric study to determine the effective coefficients of a thinned piezoelectric layer. To this aim, a one-dimensional analytical model and a three-dimensional finite element (FE) model are investigated: a thinned layer of PZT material in free mechanical boundary conditions is considered. The one-dimensional analytical admittance model allows the determination of the elastic, dielectric and piezoelectric coefficients (s E 11 , 1 T 33 , d 31 ) of the piezoelectric layer. Then, in order to determine the influence of all coefficients of the compliance, dielectric and piezoelectric tensors, a FE model is investigated.

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Smart autonomous wireless acoustic sensors for aeronautical SHM applications

Férin

Muralidharan

Mesbah

et al. 2015

2015 IEEE International Ultrasonics Symposium (IUS)

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Powering autonomous wireless sensors with miniaturized piezoelectric based energy harvesting devices for NDT applications

Cited by 6 publications

References 5 publications

BaHf0.05Ti0.95O3 Ceramics from Sol–Gel and Solid-State Processes: Application to the Modelling of Piezoelectric Energy Harvesters

BaHf0.05Ti0.95O3 Ceramics from Sol–Gel and Solid-State Processes: Application to the Modelling of Piezoelectric Energy Harvesters

Parametric study of a thin piezoelectric cantilever for energy harvesting applications

Smart autonomous wireless acoustic sensors for aeronautical SHM applications

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