Large Area Smart Piezoelectric and Pyroelectric Sensors,

Abstract

The present report provides an account of the embedment of a composite material transducer within an E-glass reinforced epoxy laminate structure for use as an in-situ AE sensor, strain gauge or ultrasonic detector I transmitter for NDT techniques. It is envisaged that by embedding a transducer within a structure it may be used as an 'early warning' device, which would warn against potential failure of the structure. Another way of thinking is that the transducer while being used in a sensing mode can then be used in an actuating mode by use of a feedback circuit thus for example being used to damp out any unwanted vibrations of the structure. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1995
Accession Number
ADA291487

Entities

People

  • Dilip K. Das-Gupta
  • M. P. Wenger

Organizations

  • Bangor University

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Aluminum Foil
  • Composite Materials
  • Crystal Lattices
  • Detection
  • Detectors
  • Epoxy Laminates
  • Films
  • Glass Fibers
  • Laminates
  • Lead Titanates
  • Lead Zirconate Titanates
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Strain Gages
  • Transducers

Readers

  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Structural Health Monitoring of Composite Structures.
  • Systems Analysis and Design