Fly-Ear Inspired Micro-Sensor for Sound Source Localization in Two Dimensions

Abstract

Inspired by the hearing organ of the fly Ormia ochracea, a miniature sound localization sensor is developed, which can be used to pinpoint a sound source in two dimensions described by the azimuth and elevation angles. The sensor device employs an equilateral triangle configuration consisting of three mechanically coupled circular membranes whose oscillations are detected by a fiber-optic system. The experimental results indicate that significant amplification of the directional cues and directional sensitivity can be achieved with the fly-ear inspired sensor design. This work can provide a basis for the development of miniature sound localization sensors in two dimensions.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2011
Accession Number
ADA543237

Entities

People

  • A. P. Lisiewski
  • D. Gee
  • H. J. Liu
  • L. Currano
  • Muqing Yu

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Acoustic Propagation
  • Amplification
  • Detectors
  • Directional
  • Elevation
  • Engineering
  • Fabrication
  • Frequency
  • Frequency Response
  • Measurement
  • Mechanical Engineering
  • Membranes
  • Resonant Frequency
  • Sensitivity
  • Three Dimensional
  • Two Dimensional

Readers

  • Acoustics.
  • Integrated Circuit Design and Technology.
  • Molecular Biology and Genetics