Low frequency wireless powering of microsystems using piezoelectric- magnetostrictive laminate composites

Andrey Bayrashev, William P. Robbins, Babak Ziaie

Research output: Contribution to journalConference article

131 Scopus citations

Abstract

This paper presents a new wireless powering technique for microsystems based on low frequency (<100Hz) excitation of a piezoelectric- magnetostrictive laminate (i.e., magnetoelectric effect). The laminate composites subjected to a magnetic field have been used to generate an electric voltage (up to 285V). Adequate power levels (10-80μW) for many microsystem applications have been generated by inserting a piezoelectric PZT sheet between two highly magnetostrictive Terbium Dysprosium Iron alloy (Terfenol-D) layers (strains of the order of 10-3 at 2-3kG). Comparing with other remote powering techniques, this method possesses much higher voltage generation efficiency per generator volume.

Original languageEnglish (US)
Pages (from-to)244-249
Number of pages6
JournalSensors and Actuators, A: Physical
Volume114
Issue number2-3
DOIs
StatePublished - Sep 1 2004
EventSelected Papers from Transducers 03 - Boston, MA, United States
Duration: Jun 8 2003Jun 12 2003

Keywords

  • Laminate composites
  • Magnetoelectric effect
  • Power generators
  • Terfenol-D

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