Infrared Nondestructive Testing of Laminated Structures and Electrical Circuits

Abstract

Infrared nondestructive testing (IRNDT) techniques and instrumentation were used successfully to detect unbonded areas in laminated structures. A high-speed infrared camera was used to monitor the thermal signature of the samples while they were being heated. Two methods of external sample heating were used in the IRNDT investigations, a 35 watt, continuous wave, CO2 laser and a 250 watt infrared lamp. The results obtained with each heat source were compared to determine the relative merits of each, and results are presented. The infrared camera was also used to detect an incipient failure in the electrical circuit board of a digital voltmeter.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1972
Accession Number
AD0746233

Entities

People

  • George E. Vandamme
  • James W. Mcgarvey

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cameras
  • Carbon Dioxide Lasers
  • Circuit Analysis
  • Circuit Boards
  • Circuits
  • Continuous Waves
  • Detection
  • Detectors
  • Electrical Circuits
  • Electronic Circuits
  • Infrared Cameras
  • Infrared Detection
  • Infrared Lamps
  • Instrumentation
  • Laminates
  • Nondestructive Testing
  • Printed Circuits

Fields of Study

  • Materials science

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Reinforced Composite Materials
  • Spectroscopy.

Technology Areas

  • Directed Energy