Investigation of a resonance microgenerator

Mizuno, M.; Chetwynd, D. G.

doi:10.1088/0960-1317/13/2/307

Cited by 140 publications

(74 citation statements)

References 5 publications

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“…Another type of resonant microgenerator is described by Mizuno and Chetwynd [85]. Their proposed device comprises a beam with an integrated coil and a fixed external magnet.…”

Section: Wafer-scale Implementationsmentioning

confidence: 99%

Energy harvesting vibration sources for microsystems applications

Beeby

Tudor

White

2006

Meas. Sci. Technol.

2,605

1,468

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This paper reviews the state-of-the art in vibration energy harvesting for wireless, self-powered microsystems. Vibration-powered generators are typically, although not exclusively, inertial spring and mass systems. The characteristic equations for inertial-based generators are presented, along with the specific damping equations that relate to the three main transduction mechanisms employed to extract energy from the system. These transduction mechanisms are: piezoelectric, electromagnetic and electrostatic. Piezoelectric generators employ active materials that generate a charge when mechanically stressed. A comprehensive review of existing piezoelectric generators is presented, including impact coupled, resonant and human-based devices. Electromagnetic generators employ electromagnetic induction arising from the relative motion between a magnetic flux gradient and a conductor. Electromagnetic generators presented in the literature are reviewed including large scale discrete devices and wafer-scale integrated versions. Electrostatic generators utilize the relative movement between electrically isolated charged capacitor plates to generate energy. The work done against the electrostatic force between the plates provides the harvested energy. Electrostatic-based generators are reviewed under the classifications of in-plane overlap varying, in-plane gap closing and out-of-plane gap closing; the Coulomb force parametric generator and electret-based generators are also covered. The coupling factor of each transduction mechanism is discussed and all the devices presented in the literature are summarized in tables classified by transduction type; conclusions are drawn as to the suitability of the various techniques.

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“…Another type of resonant microgenerator is described by Mizuno and Chetwynd [85]. Their proposed device comprises a beam with an integrated coil and a fixed external magnet.…”

Section: Wafer-scale Implementationsmentioning

confidence: 99%

Energy harvesting vibration sources for microsystems applications

Beeby

Tudor

White

2006

Meas. Sci. Technol.

2,605

1,468

View full text Add to dashboard Cite

show abstract

“…Microscale energy harvesters have typical effectiveness in the range from 1% to 10% and it is lower for smaller displacement limits [1]. The impact devices therefore achieve effectiveness values under displacement-limited operation that are comparable, or even favourable, in comparison with other device prototypes in [9,15,[17][18][33][34][35][36] with the same scale of the displacement limit. Together these examples show that there is much to be gained from transducing end-stops.…”

Section: Measurementsmentioning

confidence: 95%

Microscale Energy Harvesters with Nonlinearities Due to Internal Impacts

Le¹,

Halvorsen²

2012

Small-Scale Energy Harvesting

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“…In electret generators [16,17,[24][25][26][27][28][29][30][31][32][33][34][35][36] (see the circuits in Fig.1b,c and scematic designs in Fig.2a-c) the dielectric layer with built-in charge is formed on the inner surface of fixed plate of capacitor C(t) , and the charge losses are compensated by electrostatic induction of charge on the surface of moving plate, that is a considerable advantage of this way of energy transformation. These generators are further divided into current generators in which the capacitor C(t) is directly connected to the load R (see Fig.1b and …”

Section: Introductionmentioning

confidence: 99%