Design, Fabrication and Characterization of Wearable Energy Harvester Using Polyvinylidene Fluoride
نویسندگان
چکیده
This paper describes the design, fabrication and characterization of Polyvinylidene Fluoride (PVDF) based piezoelectric energy harvester that scavenges energy from the movement of human limbs. It investigates the effect of a piezolaminated curvilinear shell structure on the power density of a wearable energy harvester through Finite Element Method (FEM) and experimental results. Curvilinear Shell structure with thin PVDF layers embedded on top and bottom surfaces showed higher output compared with a flat structure. The harvester attached with the fingergenerated a maximum output power of 10.02 μW against a 100 kΩ resistive load while the peak to peak voltage was 10.2 V.
منابع مشابه
Models for 31-Mode PVDF Energy Harvester for Wearable Applications
Currently, wearable electronics are increasingly widely used, leading to an increasing need of portable power supply. As a clean and renewable power source, piezoelectric energy harvester can transfer mechanical energy into electric energy directly, and the energy harvester based on polyvinylidene difluoride (PVDF) operating in 31-mode is appropriate to harvest energy from human motion. This pa...
متن کاملStretchable piezoelectric nanocomposite generator
Piezoelectric energy conversion that generate electric energy from ambient mechanical and vibrational movements is promising energy harvesting technology because it can use more accessible energy resources than other renewable natural energy. In particular, flexible and stretchable piezoelectric energy harvesters which can harvest the tiny biomechanical motions inside human body into electricit...
متن کاملCharacterization of a rotary piezoelectric energy harvester based on plucking excitation for knee-joint wearable applications
Wearable medical and electronic devices demand a similarly wearable electrical power supply. Humanbased piezoelectric energy harvesters may be the solution, but the mismatch between the typical frequencies of human activities and the optimal operating frequencies of piezoelectric generators calls for the implementation of a frequency up-conversion technique. A rotary piezoelectric energy harves...
متن کاملDesign, Fabrication and Characterization of a Vibration Driven Multi-frequency Electromagnetic Energy Harvester
This paper presents design, fabrication and characterization of an electromagnetic energy harvester, which can operate at different resonance frequencies. It utilizes magnetic spring technique to scavenge energy from low frequency vibrations. The optimization of generator is done in two stages. First, optimization of a single harvester is done in terms of number of turns, coil width, coil posit...
متن کاملFabrication of Piezoelectric Polyvinylidene Fluoride (PVDF) Microstructures by Soft Lithography for Tissue Engineering and Cell Biology Applications
A method for the fabrication of piezoelectric polyvinylidene fluoride (PVDF) microstructures is described. Embossed and individual features with highly defined geometries at the microscale were obtained using soft lithography-based techniques. Various structure geometries were obtained, including pillars (three different aspect ratios), parallel lines, and criss-crossed lines. SEM characterizat...
متن کامل