Bragg Grating Fiber Optic Based Nondestructive Evaluation (NDE)

Abstract

Fiber optic Bragg grating sensors coupled with a variety of demodulation or readout techniques offer an elegant means to monitor the processing or health of materials in a variety of applications. Laboratory research has demonstrated the feasibility of using fiber optic Bragg grating sensors to determine strain and temperature in structures, monitor the processing of composites, monitor adhesive joints, serve as chemical sensors and corrosion detection sensors, and to detect acoustic emission. Several multiplexing techniques have been demonstrated that allow a number of sensors to be used on a single fiber.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2001
Accession Number
ADA398280

Entities

People

  • George A. Matzkanin
  • H. T. Yolken

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Analyzers
  • Bragg Gratings
  • Composite Materials
  • Detection
  • Detectors
  • Fiber Bragg Gratings
  • Laser Beams
  • Material Degradation Processes
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Optical Fibers
  • Polymer Matrix Composites
  • Refractive Index
  • Strain Gages

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Sensor Fusion and Tracking Systems.
  • Structural Health Monitoring of Composite Structures.