Publication detail

Increasing Sensitivity of Vibration Energy Harvester

HADAŠ, Z. ONDRŮŠEK, Č. SINGULE, V.

Original Title

Increasing Sensitivity of Vibration Energy Harvester

English Title

Increasing Sensitivity of Vibration Energy Harvester

Type

journal article in Web of Science

Language

en

Original Abstract

This paper deals with an electromagnetic vibration energy harvester which generates electrical energy from ambient vibrations. This harvester provides an autonomous source of energy for wireless applications, with an expected power consumption of several mW, placed in an environment excited by ambient vibrations. A tuned up design of the harvester with an electromagnetic converter provides sufficient generating of electrical energy for wireless applications. The output power depends on a frequency and level of the vibration and sensitivity of the energy harvester. Our harvester includes a unique spring-less resonance mechanism where stiffness is provided by repelled magnetic forces. The sensitivity is affected only by friction forces inside the mechanism of the harvester. Ways of decreasing friction, it means an increasing sensitivity, are investigated in this paper. The increasing sensitivity of the harvester provides more generated energy or decrease of the harvester size and weight.

English abstract

This paper deals with an electromagnetic vibration energy harvester which generates electrical energy from ambient vibrations. This harvester provides an autonomous source of energy for wireless applications, with an expected power consumption of several mW, placed in an environment excited by ambient vibrations. A tuned up design of the harvester with an electromagnetic converter provides sufficient generating of electrical energy for wireless applications. The output power depends on a frequency and level of the vibration and sensitivity of the energy harvester. Our harvester includes a unique spring-less resonance mechanism where stiffness is provided by repelled magnetic forces. The sensitivity is affected only by friction forces inside the mechanism of the harvester. Ways of decreasing friction, it means an increasing sensitivity, are investigated in this paper. The increasing sensitivity of the harvester provides more generated energy or decrease of the harvester size and weight.

Keywords

Energy harvesting, vibration, resonance, quality factor, vibration power generator.

RIV year

2009

Released

20.05.2009

Publisher

SPIE

Location

Bellingham, Washington

Pages from

1

Pages to

8

Pages count

522

BibTex


@article{BUT48918,
  author="Zdeněk {Hadaš} and Čestmír {Ondrůšek} and Vladislav {Singule}",
  title="Increasing Sensitivity of Vibration Energy Harvester",
  annote="This paper deals with an electromagnetic vibration energy harvester which generates electrical energy from ambient vibrations. This harvester provides an autonomous source of energy for wireless applications, with an expected power consumption of several mW, placed in an environment excited by ambient vibrations. A tuned up design of the harvester with an electromagnetic converter provides sufficient generating of electrical energy for wireless applications. The output power depends on a frequency and level of the vibration and sensitivity of the energy harvester. Our harvester includes a unique spring-less resonance mechanism where stiffness is provided by repelled magnetic forces. The sensitivity is affected only by friction forces inside the mechanism of the harvester. Ways of decreasing friction, it means an increasing sensitivity, are investigated in this paper. The increasing sensitivity of the harvester provides more generated energy or decrease of the harvester size and weight.",
  address="SPIE",
  chapter="48918",
  institution="SPIE",
  number="1",
  volume="7362",
  year="2009",
  month="may",
  pages="1--8",
  publisher="SPIE",
  type="journal article in Web of Science"
}