Integration of infrared and optical imaging techniques for the nondestructive inspection of aeronautic parts

F. López, S. Sfarra, C. Ibarra-Castanedo, D. Paoletti, X. Maldague

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This work focuses in the implementation of infrared and optical imaging techniques for the inspection of aeronautics parts. To this aim, a helicopter blade with known defects is inspected with four different techniques: long pulse thermography, pulsed thermography, digital speckle photography (DSP) and holographic interferometry (HI). The first two techniques belongs to the group of infrared imaging techniques, which are based on the analysis of the infrared thermal patterns in order to detect internal anomalies in the material; whilst the last two (DSP and HI) corresponds to the optical imaging techniques which make use of visible light to measure the material response to an applied stress. Both techniques were applied using the active approach, i.e. an external stimulation is applied in order to produce a gradient in either, the thermal and/or displacement field of the material. The results are then compared in order to evaluate the advantages and limitations of each technique.

Original languageEnglish
Title of host publicationThermosense
Subtitle of host publicationThermal Infrared Applications XXXVII
PublisherSPIE
Volume9485
ISBN (Electronic)9781628416015
DOIs
Publication statusPublished - 2015
Externally publishedYes
EventSPIE ThermoSense Conference: Thermal Infrared Applications XXXVII - Baltimore, United States
Duration: 20 Apr 201523 Apr 2015

Conference

ConferenceSPIE ThermoSense Conference: Thermal Infrared Applications XXXVII
CountryUnited States
CityBaltimore
Period20.4.1523.4.15

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Keywords

  • Aeronautic materials
  • Digital speckle photography
  • Holographic interferometry
  • Infrared thermography
  • Signal processing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

López, F., Sfarra, S., Ibarra-Castanedo, C., Paoletti, D., & Maldague, X. (2015). Integration of infrared and optical imaging techniques for the nondestructive inspection of aeronautic parts. In Thermosense: Thermal Infrared Applications XXXVII (Vol. 9485). [948506] SPIE. https://doi.org/10.1117/12.2177259