Published March 2010
| Version v1
Journal article
Electromagnetic vibration harvester with piezoelectrically tunable resonance frequency
- 1. Laboratory for Design of Microsystems, Department of Microsystems Engineering, University of Freiburg-IMTEK (Germany)
Description
This paper presents an electromagnetic vibration scavenger that exhibits a tunable eigenfrequency. By applying a static electrical field the eigenfrequency can be shifted. This feature is originated from exploiting the elastostriction of the utilized piezoelectric bimorph suspension. It is demonstrated that in the tuning operation mode more than 50 µW are scavenged continuously across the feasible frequency range of 20 Hz.
Availability note (English)
Available from http://dx.doi.org/10.1088/0960-1317/20/3/035025Additional details
Identifiers
- DOI
- 10.1088/0960-1317/20/3/035025;
- PII
- S0960-1317(10)29256-4;
Publishing Information
- Journal Title
- Journal of Micromechanics and Microengineering. Structures, Devices and Systems
- Journal Volume
- 20
- Journal Issue
- 3
- Journal Page Range
- [7 p.]
- ISSN
- 0960-1317
- CODEN
- JMMIEZ
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46021818
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- EIGENFREQUENCY; ELECTRIC FIELDS; FREQUENCY RANGE; PIEZOELECTRICITY; RESONANCE; SUSPENSIONS
- Descriptors DEC
- DISPERSIONS; ELECTRICITY