Modelling and Experimental Validation of the Acoustic Electric Feedthrough Technique

Abstract

This report outlines an investigation of an ultrasonic Acoustic Electric Feedthrough (AEF) to transfer power through a metal plate. This approach is being explored as a potential means of wirelessly powering in situ structural health monitoring systems embedded within aircraft and other high value engineering assets. A numerical model is developed describing the coupled electro-mechanical behavior of an AEF system, and is then validated using experimental data. Using a pair of well matched piezoelectric disks with 38 mm diameter and 2 mm thickness, and with 1 W of real input power, the AEF approach is shown to transfer approximately 300 mW of usable electrical power through aluminium plate with thicknesses in the range of 1.6 mm - 5 mm.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2008
Accession Number
ADA496556

Entities

People

  • Chris Phoumsavanh
  • Ian Powlesland
  • Michael Konak
  • Nik Rajic
  • Phillip Mcmahon
  • Scott Moss
  • Steve Galea

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Computer Science
  • Electronics
  • Frequency
  • Geometry
  • Jet Propulsion
  • Materials
  • Measurement
  • Mechanical Engineering
  • Metal Plates
  • Modulus Of Elasticity
  • Monitoring
  • Piezoelectric Materials
  • Structural Health Monitoring
  • Test And Evaluation
  • Three Dimensional
  • Transmission Lines

Readers

  • Computational Modeling and Simulation
  • Electrical Engineering
  • Structural Health Monitoring of Composite Structures.