Directional Characteristics of Slotted Piezoelectric Ceramic Tubes

Abstract

Single element and line transducers of various dimensions were fabricated from radially polarized, slotted piezoelectric ceramic tubes. The tubes exhibited multilobe directivity characteristics, in a plane normal to the axis of the tubes, at certain discrete frequencies. The shape of the directivity patterns are explained in terms of circumferential extensional vibrations with geometrically determined nodal positions. In addition, unidirectional response patterns were found at frequencies that were below the fundamental breathing mode of the tubes.

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Document Details

Document Type
Technical Report
Publication Date
Apr 18, 1967
Accession Number
AD0652344

Entities

People

  • J. A. Devine

Organizations

  • Naval Air Warfare Center Warminster

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Measurement
  • Actuators
  • Commerce
  • Contracts
  • Electrical Equipment
  • Elements
  • Frequency
  • Lead Titanates
  • Measurement
  • Piezoelectric Crystals
  • Resonance
  • Resonant Frequency
  • Respiration
  • Sonar Transducers
  • Transducers
  • Unidirectional
  • Vibration

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Structural Dynamics.