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 language | English |
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Title of host publication | Thermosense |
Subtitle of host publication | Thermal Infrared Applications XXXVII |
Publisher | SPIE |
Volume | 9485 |
ISBN (Electronic) | 9781628416015 |
DOIs | |
Publication status | Published - 2015 |
Externally published | Yes |
Event | SPIE ThermoSense Conference: Thermal Infrared Applications XXXVII - Baltimore, United States Duration: 20 Apr 2015 → 23 Apr 2015 |
Conference
Conference | SPIE ThermoSense Conference: Thermal Infrared Applications XXXVII |
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Country | United States |
City | Baltimore |
Period | 20.4.15 → 23.4.15 |
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