In this paper, we report the design, experimental validation and application of a scalable, wearable e-textile triboelectric energy harvesting (WearETE) system for scavenging energy from activities of daily living. The WearETE system features ultra-low-cost material and manufacturing methods, high accessibility, and high feasibility for powering wearable sensors and electronics. The foam and e-...

A 2015 NRDC research study revealed that electronic devices consume alarming amounts of energy. To reduce theenergy consumption these devices, this project proposes a novel energy-harvesting keyboard design allows acomputer to charge as the user types on it. The generates electricity via piezoelectric materials. novelkey structure and transducer circuit were proposed integrate piezo materials i...

Generation of the electric power by permanently polarized (electret containing) capacitor is analyzed and investigated in the matter of energy harvesting from oscillations and rotation. Experimentally demonstrated the generation of short high-voltage (up to 1 MV) pulses or low voltage (few volts) alternating current that can be rectified and stored.

The exploitation of nonlinear behavior in vibration-based energy harvesters has received much attention over the last decade. One key motivation is that the presence of nonlinearities can potentially increase the bandwidth over which the excitation is amplified and therefore the efficiency of the device. In the literature, references to resonating energy harvesters featuring nonlinear oscillato...

In this paper, the interdisciplinary energy harvesting issues on piezoelectric energy harvesting were investigated using a ‘33’ mode (mechanical stress and/or electric field are in parallel to the polarization direction) lead zirconate titanate multilayer piezoelectric stack (PZT-Stack). Key energy harvesting characteristics including the generated electrical energy/power in the PZT-Stack, the ...

Title of thesis: RESONANT CIRCUIT TOPOLOGY FOR RADIO FREQUENCY ENERGY HARVESTING Negin Shahshahan, Master of Science, 2012 Directed by: Professor Neil Goldsman Department of Electrical and Computer Engineering In this work the operation of a MOSFET based rectifier, composed of multiple stages of voltage doubler circuits used for radio frequency (RF) energy harvesting, is investigated. Analytica...

Based on the complete dynamic calculation method, the layout, force, and strength of harvester boom cylinders were designed and calculated. Closed simulations for the determination of the dynamic responses of the harvester boom during luffing motion considering the cylinder drive system and luffing angle position control have been realized. Using the ADAMS mechanical system dynamics analysis so...

Automatic estimation of the amount of trash, such as branches and leaves, collected by a mechanical citrus harvester during harvesting eliminates problems in the processing plants with handling diseased leaves and fruit. A machine vision system was developed to estimate the amount of trash collected by a citrus canopy shake and catch harvester by acquiring and analyzing the images of the harves...