Design, fabrication and performance of a new vibration-based electromagnetic micro power generator

Electromagnetic energy harvesting from vibrations induced by Kármán vortex street

“…As reported by Stoianov et al [1], the battery life for a WSN monitoring a water supplying pipeline was consistent with duration of around 50-62 days. In recent years a considerable effort was focused on the development of energy harvesters or micropower generators for deployment of battery-less or rechargeable battery powered devices [2][3][4][5][6][7]. By harvesting energy from the environment, miniature sensing/actuating devices can be self-powered in order to avoid the replacement of finite power sources.…”

“…Electromagnetic harvesters have been proposed and investigated by many researchers, for example, see [2][3][4][5][6][7][23][24][25][26][27][28][29][30][31]. In this paper, we develop a new electromagnetic energy-harvesting device based on vibration induced by Kármán vortex street.…”

Design of a frequency-adjusting device for harvesting energy from a rotating wheel

“…There are three major means to the harvesting of kinetic energy: piezoelectricity [1][2][3][4][5][6], electromagnetic induction [7][8][9][10][11] and electrostatics [12], and the energy storage densities were discussed by Roundy et al [13]. The primary advantage of the electrostatic method is that it can be integrated into the MEMS process and so can be compact in size, while the main drawback is the small energy storage density.…”

Modeling of linear micro electromagnetic energy harvesters with nonuniform magnetic field for sinusoidal vibrations

“…One possibility is to classify them on the basis of the configuration of the magnetic field between the magnet and the coil. EMEHs with uniform magnetic field configuration (Torah et al 2008) and with nonuniform magnetic field configuration (Williams et al 2001;Huang et al 2007;Wang et al 2007;Khan et al 2010) function differently. Mostly Faraday's law is used to describe the electromechanical transduction in EMEHs.…”