Human motion energy harvesting using a piezoelectric MFC patch

Bassani, Giulia; Filippeschi, Alessandro; Ruffaldi, Emanuele

doi:10.1109/embc.2015.7319531

Cited by 11 publications

(6 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Piezoceramic fibers are placed in an epoxy matrix, which prevents crack propagation, and a patterned alignment of the electrodes ensures higher electromechanical efficiency. Such an innovation improves both resilience and elasticity in comparison with monolithic ceramics [ 33 ]. After applying the voltage, it acts as an actuator and is able to bend the material to excite or damp vibrations.…”

Section: Design Of the Hybrid Piezoelectric Energy Harvester (Hpeh) And Test Standmentioning

confidence: 99%

Ceramic-Based Piezoelectric Material for Energy Harvesting Using Hybrid Excitation

Ambrożkiewicz

Czyż²,

Karpiński

et al. 2021

Materials

View full text Add to dashboard Cite

This paper analyzes the energy efficiency of a Micro Fiber Composite (MFC) piezoelectric system. It is based on a smart Lead Zirconate Titanate material that consists of a monolithic PZT (piezoelectric ceramic) wafer, which is a ceramic-based piezoelectric material. An experimental test rig consisting of a wind tunnel and a developed measurement system was used to conduct the experiment. The developed test rig allowed changing the air velocity around the tested bluff body and the frequency of forced vibrations as well as recording the output voltage signal and linear acceleration of the tested object. The mechanical vibrations and the air flow were used to find the optimal performance of the piezoelectric energy harvesting system. The performance of the proposed piezoelectric wind energy harvester was tested for the same design, but of different masses. The geometry of the hybrid bluff body is a combination of cuboid and cylindrical shapes. The results of testing five bluff bodies for a range of wind tunnel air flow velocities from 4 to 15 m/s with additional vibration excitation frequencies from 0 to 10 Hz are presented. The conducted tests revealed the areas of the highest voltage output under specific excitation conditions that enable supplying low-power sensors with harvested energy.

show abstract

Section: Design Of the Hybrid Piezoelectric Energy Harvester (Hpeh) And Test Standmentioning

confidence: 99%

Ceramic-Based Piezoelectric Material for Energy Harvesting Using Hybrid Excitation

Ambrożkiewicz

Czyż²,

Karpiński

et al. 2021

Materials

View full text Add to dashboard Cite

show abstract

“…A trust maximum voltage output of 30 mV was obtained by the harvester. Similar human motion energy harvesters operating in the direct bending mode were carried out by Bassani et al [13], Cheng et al [14], and Yang and Yun [16]. Meanwhile, studies presented by Pillatsch et al [11], Renaud et al [12], and Minami and Nakamachi [15] used mechanical mechanisms to transform the impact loads of human motion into the bending movement of the piezoelectric material, which could be referred to as the indirect bending mode.…”

Section: Employed Amentioning

confidence: 95%

Energy Harvesting From an Artificial Bone

2019

View full text Add to dashboard Cite

An artificial bone that can harvest energy from human motion was proposed, designed, analyzed, fabricated, and tested. The proposed artificial bone was fabricated by a 3D printer. A piece of magnetostrictive material was embedded in the middle of the artificial bone as the energy harvesting component. When the artificial bone was compressed, the magnetostrictive material was also stressed, which caused a variation in the permeability, according to the Villari effect. The varied permeability led to a varied spatial magnetic field. The varied spatial magnetic field was acquired by a collecting coil, and was transmitted and stored as a kind of energy from the human motion. A theoretical analysis of the artificial bone was conducted to find factors that influence energy harvesting performance. Experimental tests of harvesting energy from the proposed artificial bone were carried out. The voltage output and its varying tendency in the artificial bone agreed with the theoretical analysis. The artificial bone prototype achieved a trust maximum voltage of 206 mV (peak-to-peak) and a trust maximum power of 0.1 mW.

show abstract

“…In response to this issue, energy harvesting schemes can be employed as alternative solutions by converting light, heat, and/or motion into electricity [4,5]. Moreover, the field of kinetic harvesting has shown relevant developments for the piezoelectric, electromagnetic, electrostatic, and triboelectric technologies [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

An Energy Logger for Kinetic-Powered Wrist-Wearable Systems

Manjarrés

Pardo

2020

Electronics

View full text Add to dashboard Cite

Kinetic energy harvesting is a promising technology towards the development of alternative battery-charging schemes or even self-powered wearable devices that obtain their power supply from human motion. Although there are many developments with schemes that leverage piezoelectric materials and human motion to power devices especially from footsteps, some other body locations like the wrist still need assessment with piezoelectric generators to evaluate their potential of limitations. In this work, we present the results of logging the energy transference from a wrist-worn piezoelectric harvester to a battery in a wearable device. This system is the continuation of our previous work where we implemented the harvester with a resistive load previously tuned to obtain maximum power and assessed the energy harvested during physical activities. Now, we replace the linear load with a charge controller and a Li-ion battery in the same wearable set-up. These new conditions are not optimal for the piezoelectric generator but present a more realistic environment for the kinetic harvester and allows a more precise study of the feasibility of a self-powered system. Tests show that five minutes of activities that involve arm motion can provide between 1.75 mJ and 2.98 mJ of energy, which can represent between 3.6 seconds and 6.2 seconds of additional battery duration. Hence, these results provide an insight of the limitations and challenges remaining in the piezoelectric-based kinetic harvesting field for wearable devices.

show abstract

Human motion energy harvesting using a piezoelectric MFC patch

Cited by 11 publications

References 11 publications

Ceramic-Based Piezoelectric Material for Energy Harvesting Using Hybrid Excitation

Ceramic-Based Piezoelectric Material for Energy Harvesting Using Hybrid Excitation

Energy Harvesting From an Artificial Bone

An Energy Logger for Kinetic-Powered Wrist-Wearable Systems

Contact Info

Product

Resources

About