Energy harvesting is attractive for powering wireless sensors, especially in applications such as body sensor networks and pervasive sensing, where power source replacement or recharging is impractical. A MEMS (micro-electro-mechanical systems) electrostatic harvesting device suitable for body motion has been reported previously, using a rolling rod as the proof mass. A new rolling rod device i...

Corresponding Author: Noor Hidayah Mohd Yunus and Jahariah Sampe Institute of Microengineering and Nanoelectronics,Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia Email: [email protected] [email protected] Abstract: The paper deals with the growing interest of energy harvesting systems due to great development in many new emerging technologies in electronics and teleco...

This paper presents a magnetically levitated electromagnetic vibration energy harvester based on magnet arrays . It has a nonlinear response that extends the operating bandwidth and enhances the power output of the harvesting device. The harvester is designed to be embedded in a hip prosthesis and harvest energy from low frequency movements (< 5 Hz) associated with human motion. The design opti...

Rotational energy is widely distributed in many industrial and domestic applications, such as ventilation systems, moving vehicles and miniature turbines. This paper reports the design and implementation of a bi-stable rotational energy harvester with wide bandwidth and low operating frequency. The rotational energy is converted into electricity by magnetic plucking of a piezoelectric cantileve...

This paper describes the use of piezoelectric polymers in order to harvest energy from people walking, together with the electronics needed to increase energy transfer and storage efficiency. An electrostatic generator was also included in order to increase energy harvesting. There have been independent solutions in increasing the harvesting efficiency either on the mechanical harvester or on i...

A wireless temperature sensor node composed of a piezoelectric wind energy harvester, a temperature sensor, a microcontroller, a power management circuit and a wireless transmitting module was developed. The wind-induced vibration energy harvester with a cuboid chamber of 62 mm × 19.6 mm × 10 mm converts ambient wind energy into electrical energy to power the sensor node. A TMP102 temperature s...

The demand for energy-harvesting technology is steadily growing in the field of self-powered wireless sensor systems for use in pneumatic systems. The purpose of this research was to study an energy harvester excited by alternating air load in a pneumatic system. The harvester was designed to consist of a power chamber and a compressed chamber, and to the bottom of the power chamber a piezoelec...

A piezoelectric energy harvester generator is a device capable of transforming environmental mechanical into electrical energy. The electromechanical parameters determine the maximum power which able to be transferred an electric load. In this research work, exhaustive study related material carried out, modeling them as components circuit, in order analyze their influence on transmitted power....