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An electromagnetic, vibration-powered generator for intelligent sensor systems

Glynne-Jones, P, Tudor, MJ, Beeby, SP and White, NM, French, Paddy(ed.) (2004) An electromagnetic, vibration-powered generator for intelligent sensor systems Sensors and Actuators A: Physical, 110, (1-3), pp. 344-349.

Record type: Article


This paper describes the design of miniature generators capable of converting ambient vibration energy into electrical energy for use in powering intelligent sensor systems. Such a device acts as the power supply of a microsystem which can be used in inaccessible areas where wires can not be practically attached to provide power or transmit sensor data. Two prototypes of miniature generator are described and experimental results presented. Prototype A is based around two magnets coupled to a coil attached to a cantilever; prototype B is based around four magnets. For prototype A, experimental results are given for its resonant frequency and its open circuit and loaded output as a function of vibration amplitude. For prototype B, experimental results are given for the generator's Q factor in air and vacuum, its output voltage as a function of vibration amplitude as well as its magnetic field strength. This generator has been tested on a car engine and shown to produce a peak power of 3.9 mW with an average power of 157 micro watts.

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Published date: February 2004
Keywords: Microgenerator, Energy harvesting, Parasitic power source
Organisations: EEE


Local EPrints ID: 258862
ISSN: 0924-4247
PURE UUID: 5a19d7f3-77d5-4796-910a-d40d9373e5a6
ORCID for P Glynne-Jones: ORCID iD
ORCID for SP Beeby: ORCID iD
ORCID for NM White: ORCID iD

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Date deposited: 02 Mar 2005
Last modified: 18 Jul 2017 09:29

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Author: P Glynne-Jones ORCID iD
Author: MJ Tudor
Author: SP Beeby ORCID iD
Author: NM White ORCID iD
Editor: Paddy French

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