Microsystem Technologies

, Volume 12, Issue 10, pp 1079–1083

Mems inertial power generators for biomedical applications

  • P. Miao
  • P. D. Mitcheson
  • A. S. Holmes
  • E. M. Yeatman
  • T. C. Green
  • B. H. Stark
Technical Paper

DOI: 10.1007/s00542-006-0152-9

Cite this article as:
Miao, P., Mitcheson, P.D., Holmes, A.S. et al. Microsyst Technol (2006) 12: 1079. doi:10.1007/s00542-006-0152-9

Abstract

An inertial vibration scavenging micro-generator is described which is suitable for biomedical applications. MEMS fabrication techniques have been used to construct a variable capacitor having one moving plate on which a proof mass is attached. Energy is extracted when the plates separate at constant charge. This device is non-resonant, so can operate over a wide range of excitation frequencies and amplitudes. The energy extracted per cycle, 120 nJ, is well above previous reports. The fabrication techniques employed are described, and test data are given and compared to modeling results, showing good agreement.

Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • P. Miao
    • 1
  • P. D. Mitcheson
    • 1
  • A. S. Holmes
    • 1
  • E. M. Yeatman
    • 1
  • T. C. Green
    • 1
  • B. H. Stark
    • 1
  1. 1.Department of Electrical and Electronic EngineeringImperial College LondonLondonUK