Results 21 to 30 of about 1,116 (149)

Dynamic Line-Scan Thermography for the Inspection of Paper-Based Materials: A Case Study Focused on an Ancient Book Cover

Proceedings, 2019
This work is focused on the use of line-scan thermography (LST) method for the inspection of an ancient book cover. Three widely used image post-processing techniques (i.e., pulsed phase thermography, partial least square thermography and principal ...
Hai Zhang, Stefano Sfarra, Clemente Ibarra-Castanedo, Xavier P. V. Maldague   +3 more
doaj   +1 more source

A Novel Infrared Thermography Sensing Approach for Rapid, Quantitative Assessment of Damage in Aircraft Composites

Sensors, 2020
The current necessity of the scientific and industrial community, for reduction of aircraft maintenance cost and duration, prioritizes the need for development of innovative nondestructive techniques enabling fast and reliable defect detection on ...
Spyridoula Farmaki, Dimitrios A. Exarchos, Ilias K. Tragazikis, Theodore E. Matikas, Konstantinos G. Dassios   +4 more
doaj   +1 more source

Feasibility of Pulsed Thermography for Moisture Estimation

Journal of Applied Research and Technology, 2022
The dehydration of farm products provides farmers an opportunity to preserve their products longer and simultaneously earn more profit from them. Nevertheless, traditionally the quality of the dehydrated products has been determined by the use of invasive methods, for example, through manual measurements with a Vernier caliper and a micrometer, has its
Jehiely Belem Hernández-Castillo, Sabino Velázquez-Trujillo, Efraín Simá-Moo, Héctor Guerra-Crespo, Jorge Luis Camas-Anzueto, Madaín Perez-Patricio, José Armando Fragoso-Mandujano   +6 more
openaire   +1 more source

Spatial Structure Analysis for Subsurface Defect Detection in Materials Using Active Infrared Thermography and Adaptive Fixed-Rank Kriging

Engineering Proceedings, 2023
The study focuses on reducing noise and nonstationary backgrounds in data collected through active infrared thermography (AIRT) for defect detection in materials.
Chun-Han Chang, Stefano Sfarra, Nan-Jung Hsu, Yuan Yao   +3 more
doaj   +1 more source

A Quantitative Comparison Among Different Algorithms for Defects Detection on Aluminum with the Pulsed Thermography Technique

Metals, 2018
Pulsed thermography is commonly used as a non-destructive technique for evaluating defects within materials and components. In the last few years, many algorithms have been developed with the aim to detect defects and different methods have been used for
Ester D’Accardi, Davide Palumbo, Rosanna Tamborrino, Umberto Galietti   +3 more
doaj   +1 more source

Detection and Characterization of Artificial Porosity and Impact Damage in Aerospace Carbon Fiber Composites by Pulsed and Line Scan Thermography

Applied Sciences, 2023
Nondestructive testing (NDT) of composite materials is of paramount importance to the aerospace industry. Several NDT methods have been adopted for the inspection of components during production and all through the aircraft service life, with infrared ...
Clemente Ibarra-Castanedo, Pierre Servais, Matthieu Klein, Thibault Boulanger, Alain Kinard, Sébastien Hoffait, Xavier P. V. Maldague   +6 more
doaj   +1 more source

Applications of Pulse Phase Thermography

, 1997
Recently, a novel approach was proposed which combines advantages of both pulse (PT) and modulated (MT) thermography. In a nondestructive evaluation (NDE) perspective, the specimen is pulse-heated as in PT and the mix of frequencies of the thermal waves launched into the specimen are unscrambled by performing the Fourier transform of the temperature ...
X Maldague, S Marinetti, J P Couturier
openaire   +5 more sources

Non-Contact Degradation Evaluation for IGBT Modules Using Eddy Current Pulsed Thermography Approach

Energies, 2020
In this paper, a non-contact degradation evaluation method for insulated gate bipolar transistor (IGBT) modules is proposed based on eddy current pulsed thermography approach.
Xingliang Liu, Guiyun Tian, Yu Chen, Haoze Luo, Jian Zhang, Wuhua Li   +5 more
doaj   +1 more source

Active thermography to look beneath the surface of a historic German aircraft

Research and Review Journal of Nondestructive Testing, 2023
Thermography is a well-established non-destructive testing technique in materials research and defect detection. In addition, it is used on cultural heritage in the form of buildings and paintings.
Julia Frisch, Catharina Blaensdorf, Andreas Hempfer, Marisa Pamplona-Bartsch, Christian U. Grosse   +4 more
doaj   +1 more source

Numerical simulation of subsurface defect identification by pulsed thermography and improvement of this technique for noisy data

Fracture and Structural Integrity, 2019
Pulsed thermography is an active non-destructive technique which uses optical excitation source to stimulate heating of the object under investigation.
Oleg Plekhov, Anastasiya Kostina, Sergey Aizikovich   +2 more
doaj   +3 more sources