Academic literature on the topic 'Thermographie inductive'

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Journal articles on the topic "Thermographie inductive"

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Liu, Xingliang, Guiyun Tian, Yu Chen, Haoze Luo, Jian Zhang, and Wuhua Li. "Non-Contact Degradation Evaluation for IGBT Modules Using Eddy Current Pulsed Thermography Approach." Energies 13, no. 10 (2020): 2613. http://dx.doi.org/10.3390/en13102613.

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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. In non-contact heat excitation procedures, a high-power induction heater is introduced to generate heat excitation in IGBT modules. The thermographs of the whole temperature mapping are recorded non-invasively by an IR camera. As a result, the joint degradation of IGBT modules can be evaluated by the transient thermal response curves derived from the recorded thermographs. Firstly, the non-destructive evaluation principl
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Mendioroz, Arantza, Lorenzo Fuggiano, Pablo Venegas, Idurre Sáez de Ocáriz, Umberto Galietti, and Agustín Salazar. "Characterizing Subsurface Rectangular Tilted Heat Sources Using Inductive Thermography." Applied Sciences 10, no. 16 (2020): 5444. http://dx.doi.org/10.3390/app10165444.

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In this study, we characterize the lateral dimension, depth, and inclination of buried tilted rectangular heat sources from time domain temperature data measured at the surface. The heat sources are representative for planar defects that emit heat in thermographic tests with internal burst excitation. We present a semi-analytical expression for the evolution of the surface temperature distribution. The emitted flux, dimensions and inclination of the heat source are determined by fitting the model to two perpendicular surface temperature profiles and the temperature history at one point of the
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Mahami, Amine, Chemseddine Rahmoune, Toufik Bettahar, and Djamel Benazzouz. "Induction motor condition monitoring using infrared thermography imaging and ensemble learning techniques." Advances in Mechanical Engineering 13, no. 11 (2021): 168781402110609. http://dx.doi.org/10.1177/16878140211060956.

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In this paper, a novel noncontact and nonintrusive framework experimental method is used for the monitoring and the diagnosis of a three phase’s induction motor faults based on an infrared thermography technique (IRT). The basic structure of this work begins with this applying IRT to obtain a thermograph of the considered machine. Then, bag-of-visual-word (BoVW) is used to extract the fault features with Speeded-Up Robust Features (SURF) detector and descriptor from the IRT images. Finally, various faults patterns in the induction motor are automatically identified using an ensemble learning c
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Kosec, Borut, Blaž Karpe, Mirko Gojić, et al. "Inductive Heating and Quenching of Planetary Shafts for Diesel Engine Starters." Advanced Technologies & Materials 48, no. 2 (2023): 55–61. http://dx.doi.org/10.24867/atm-2023-2-003.

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High mechanical and temperature cyclic loading of the final products for automotive, transport, construction and agriculture mechanization industry, demands sufficient mechanical properties of all of their components during its exploitation. Majority of the components is made of steel, by different cold forming processes. Their main demanded characteristics are surface wear resistance and fatigue strength under pulsating stress in combination with cyclic temperature loading, which could be achieved only by appropriate heat treatment. The efficiency of the combined inductive heating and water q
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Naveenkumar, Pushpalatha, and Sudha Mohanram. "An Empirical Performance Assessment of Infrared Thermography for Real-time Monitoring of Electrical Systems in the Coco Fibre Industry." Proceedings of the Bulgarian Academy of Sciences 76, no. 4 (2023): 597–604. http://dx.doi.org/10.7546/crabs.2023.04.12.

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The quality of the electrical network, which includes MV panels, DBs, MCBs, sub-circuits with fuse units, and electrical motors for machine tools, determines production in any sector. Most drive systems employ inductionmotors. System temperature indicates health. Excess temperature is rarely detected due to breakdown. This case study presents real-time data for a leading coir industry from each electrical circuit and motor in several machine tools. Every section is thermographed and compared to the allowed temperature range. Thermographic analysis is non-contact and uses fewer meters and instr
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Resendiz-Ochoa, Emmanuel, Salvador Calderon-Uribe, Luis A. Morales-Hernandez, Carlos A. Perez-Ramirez, and Irving A. Cruz-Albarran. "Multiple Electromechanical-Failure Detection in Induction Motor Using Thermographic Intensity Profile and Artificial Neural Network." Machines 12, no. 12 (2024): 928. https://doi.org/10.3390/machines12120928.

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The use of artificial intelligence-based techniques to solve engineering problems is increasing. One of the most challenging tasks facing industry is the timely diagnosis of failures in electromechanical systems, as they are an essential part of production systems. In this sense, the earlier the detection, the higher the economic loss reduction. For this reason, this work proposes the development of a new methodology based on infrared thermography and an artificial intelligence-based classifier for the detection of multiple faults in an electromechanical system. The proposal combines the inten
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Tuschl, Christoph, Beate Oswald-Tranta, and Sven Eck. "Scanning Inductive Thermographic Surface Defect Inspection of Long Flat or Curved Work-Pieces Using Rectification Targets." Applied Sciences 12, no. 12 (2022): 5851. http://dx.doi.org/10.3390/app12125851.

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Inductive thermography is an NDT method, which can be excellently used to inspect long metallic specimens (such as railway tracks) to detect surface defects. Aiming at the inspection of railway tracks in service with a movable setup, the method had to be advanced from a stationary application to a scanning setup. This work presents methods for using calibration targets for rectification, in order to improve the quality of the resulting images. Two scanning techniques are presented for detecting different types of rolling contact fatigue (RCF) defects on rail pieces. In the case of the first me
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Xia, Hui, Erlong Li, Jianbo Wu, et al. "Scanning induction thermography for subsurface defect orientation detection and depth quantification." International Journal of Applied Electromagnetics and Mechanics 64, no. 1-4 (2020): 869–77. http://dx.doi.org/10.3233/jae-209400.

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Pulsed eddy current thermography (PECT) and eddy current lock-in thermography (ECLIT) are non-destructive testing (NDT) techniques of high promising and interest in subsurface defect detection. In the previous researches, the induction coil was set above the defect region and it always parallel to the defect orientation. However, the location and orientation of subsurface defects cannot be determined before detection. Therefore, the scanning induction thermography (SIT) based on dynamic thermography is proposed by some researchers to localize and distinguish the subsurface defects. Still, the
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Tuschl, Christoph, Beate Oswald-Tranta, and Sven Eck. "Inductive Thermography as Non-Destructive Testing for Railway Rails." Applied Sciences 11, no. 3 (2021): 1003. http://dx.doi.org/10.3390/app11031003.

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Inductive thermography is a non-destructive testing method, whereby the specimen is slightly heated with a short heating pulse (0.1–1 s) and the temperature change on the surface is recorded with an infrared (IR) camera. Eddy current is induced by means of high frequency (HF) magnetic field in the surface ‘skin’ of the specimen. Since surface cracks disturb the eddy current distribution and the heat diffusion, they become visible in the IR images. Head checks and squats are specific types of damage in railway rails related to rolling contact fatigue (RCF). Inductive thermography can be excelle
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Lee, Seungju, Yoonjae Chung, and Wontae Kim. "Enhancing Inductive IR Thermography by Using FFT-Equalization, Motion Tracking Detection and VDSR Super-resolution Processing." International Journal of Precision Engineering and Manufacturing-Smart Technology 2, no. 2 (2024): 133–42. http://dx.doi.org/10.57062/ijpem-st.2024.00108.

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Among non-destructive inspection techniques, infrared thermography stands out as a promising technology that enables real-time inspection of large areas without the need for physical contact. In this study, we employed the dynamic induction thermography method, which is one of the active infrared thermography techniques, to detect defects on the back side of the S275 material specimen. This technique involves creating relative movement between the IR camera and the specimen. We acquired sequence images at different moving speeds using the induction thermography technique, and then used the FFT
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Dissertations / Theses on the topic "Thermographie inductive"

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Dirahoui, Walid. "Caractérisations numérique et expérimentale de défauts structurels dans les rubans supraconducteurs multicouches par thermographie inductive." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0124.

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Les travaux de recherche menés dans le cadre cette thèse concernent la caractérisation de défauts structurels, à température ambiante, dans les rubans supraconducteurs de deuxième génération, dans une démarche contrôle de qualité et de fiabilité. Dans un premier temps, une modélisation magnétothermique bidimensionnel a été développée pour étudier la possibilité d'appliquer le contrôle par thermographie inductive sur les rubans SHT-2G. Par la suite, un banc expérimental est confectionné pour le contrôle des défauts structurels dans les rubans SHT-2G où un inducteur tournant a été préféré aux in
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Azzabi, Zouraq Brahim. "Optimisation du procédé de contrôle non destructif par thermographie inductive pour des applications du domaine nucléaire." Thesis, Nantes, 2019. http://www.theses.fr/2019NANT4023/document.

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Les travaux de cette thèse traitent d’une technique de contrôle non destructif (CND) novatrice et de son adaptation au domaine du nucléaire civil. L’outil numérique est utilisé à cette fin. Une présentation exhaustive des modèles numériques adaptés à la problématique est tout d’abord faite. Ces outils sont par la suite implémentés et leurs performances comparées. Ceci a permis de mettre en place un outil numérique rapide et capable de prendre en comptes différentes contraintes de modélisation. Il s’agit plus essentiellement de la prise en compte du circuit, d’alimentation du système de chauffe
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Ba, Abdoulaye. "Développement d’une plateforme de modélisation multi-physique et multi-échelle des techniques de CND des matériaux composites stratifiés par les techniques des courants de Foucault et de thermographie inductive." Thesis, Nantes, 2021. http://www.theses.fr/2021NANT4001.

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À différents stades du cycle de vie du matériau composite, les méthodes de Contrôles Non Destructifs (CND) permettent de caractériser son état d’intégrité. Elles jouent un rôle indispensable dans le contrôle de la qualité et dans la gestion des risques. Les principales exigences du CND sont la capacité de détecter et de discriminer les défauts de différentes natures, le dimensionnement précis des défauts, l’inspection et l’interprétation rapide et fiable, la capacité d’inspection des structures de formes complexes. En regard à ces besoins, les matériaux composites de natures très complexes (hé
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Bui, Huu Kien. "Contribution à la modélisation multiphysique des matériaux composites stratifié : application au CND thermo-inductifs." Nantes, 2014. https://archive.bu.univ-nantes.fr/pollux/show/show?id=61cbe9e0-41bc-4278-a974-e1bc8f8eb0c7.

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Grâce à leurs excellentes performances mécaniques, l'intérêt des composites à fibres de carbone n'a pas cessé de croître ces dernières décennies. Cependant, le développement à grande échelle de ces matériaux passe par une amélioration des procédés utilisés pendant les différentes étapes du cycle de vie (élaboration, formage, assemblage, contrôle, recyclage). À différents stades du cycle de vie du matériau, les méthodes de Contrôle Non Destructif (CND) permettent de caractériser l'état d'intégrité du matériau. Elles jouent un rôle indispensable dans le contrôle de la qualité et dans la gestion
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Ramdane, Brahim. "Contribution à la modélisation tridimensionnelle de la technique thermo-inductive de contrôle non destructif : développement d'un outil de conception, d'analyse et d'aide à la décision." Nantes, 2009. http://archive.bu.univ-nantes.fr/pollux/show.action?id=340deb67-d3d1-4e13-b39d-aed8a71021b2.

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La complexité grandissante des pièces fabriquées et les exigences croissantes en terme de sûreté de fonctionnement conduisent à mettre en place de nouveaux procédés de CND. Dans ce travail, une nouvelle méthode appelée technique thermo-inductive a été développée et étudiée. C'est une combinaison et alternative intéressante du CND par courant de Foucault et de la thermographie infrarouge. Cette méthode est basée sur l'utilisation conjointe des phénomènes électromagnétique et thermique pour avoir une bonne sélectivité des défauts. La pièce inspectée est chauffée par induction et la présence du d
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Du, Tao. "Thermographie infrarouge active par induction électromagnétique. : application à l'auscultation d'éléments en béton renforcé." Thesis, Artois, 2010. http://www.theses.fr/2010ARTO0203/document.

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Les enjeux économiques et sécuritaires majeurs portant sur l'évaluation de la pérennité des systèmes de précontrainte dans les ouvrages d'art conduisent au développement de nouvelles méthodes d'auscultation. Ces travaux représentent la contribution du LGCgE au programme national de recherche ANR ACTENA sur l'auscultation des câbles tendus non-accessibles. Les objectifs de ce travail sont la détermination du tracé des câbles de précontrainte et la détection des zones de défauts d'injection par thermographie infrarouge active. Le premier chapitre rappelle le contexte de cette étude, ainsi que le
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Dragan, Razvan Gabriel. "Etudes sur le diagnostic des systèmes par thermographie infrarouge." Thesis, Artois, 2014. http://www.theses.fr/2014ARTO0207/document.

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La thèse intitulée Études sur le diagnostic des systèmes par thermographie infrarouge propose des recherche théoriques et expérimentales dans un domaine complexe - le domaine des méthodes d’analyse non-destructive, spécialement la thermographie infrarouge utilisant des diverses sources d’excitation thermique: laser à CO2, lampes photographiques à halogène, sources électriques, micro-ondes et induction électromagnétique. L’analyse par thermographie infrarouge a été appliquée sur des divers systèmes soit du génie civil, soit de l’ingénierie médicale, dans le but de détecter des défauts internes
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Louaayou, Madani. "Contribution à l'étude du CND par thermographie infrarouge stimulé par l'induction magnétique." Nantes, 2007. http://www.theses.fr/2007NANT2119.

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Les méthodes du Contrôle Non Destructif sont des techniques actives qui nécessitent une source d’énergie pour stimuler le spécimen. La réponse est alors recueillie par un capteur approprié pour accéder à l’état interne de la cible. Elles se différencient par le phénomène physique pour mise en oeuvre de la stimulation et/ou dans la perception de la réponse. Des techniques dites hybrides combinent deux ou plusieurs phénomènes physiques pour avoir une bonne sélectivité des défauts et plus d’informations concernant la cible. Dans ce travail, nous avons étudié une technique basée sur le comportemen
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Roberts, Matthew Thomas. "Induction Infrared Thermography for Non-Destructive Evaluation of Alloy Sensitization." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/90668.

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The sensitization of stainless steel describes the process by which a high-carbon steel alloy is heated above a certain threshold (either naturally or artificially) followed by a cooling period during which chromium (one of the elements most responsible for providing stainless steel with its corrosion-inhibiting properties) forms new compounds with the carbon present in the steel. With the chromium being taken from the parent material to form these compounds, the corrosion-resistant properties are compromised, which can lead to corrosion, cracking, and broader failure. Currently, the accepted
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Mokhtari, Mohammed-Yacine. "Potentiel de la robotique pour l'inspection thermographique par chauffage inductif." Master's thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/33042.

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La thermographie par courants de Foucault (ECT) est une méthode de thermographie active. L’excitation inductive génère des courants de Foucault dans les spécimens conducteurs. En présence de défauts, la circulation des courants est affectée par ces discontinuités produisant un changement dans la distribution de la température autour des défauts. Ces changements sont observés avec une caméra infrarouge. Dans ce travail, on présente une application robotique de la thermographie par courants de Foucault. Une interface robotique a été développée et tous les capteurs utilisés ont été intégrés à la
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Book chapters on the topic "Thermographie inductive"

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Netzelmann, Udo. "Induction Thermography of Surface Defects." In Handbook of Advanced Non-Destructive Evaluation. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-30050-4_31-1.

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Netzelmann, Udo. "Induction Thermography of Surface Defects." In Handbook of Advanced Nondestructive Evaluation. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-26553-7_31.

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De Vanna, Davide, Ester D’Accardi, Giuseppe Dell’Avvocato, Davide Palumbo, and Umberto Galietti. "Induction Thermography: Influence of Testing Parameters for Different Crack Geometry." In Challenges in Mechanics of Biological Systems and Materials, Thermomechanics and Infrared Imaging, Time Dependent Materials and Residual Stress, Volume 2. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-50470-9_11.

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Du, T., F. Brachelet, D. Defer, and E. Antczak. "Quantitative Evaluation of Thermal Diffusivity and Thickness of Mortar Cover Using Induction Thermography." In Nondestructive Testing of Materials and Structures. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0723-8_41.

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Giovinco Gaspare, Rubinacci Guglielmo, Russi Aldo, Tamburrino Antonello, and Ventre Salvatore. "Design and Experimental Testing of a Thermographic Nondestructive System with Induction Heating." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2012. https://doi.org/10.3233/978-1-60750-968-4-278.

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Among non-destructive testing and evaluation (NDT&E) techniques, infrared thermography is widely used because of its great advantage to allow fast inspection of large surfaces. In the present paper active infrared thermography is adopted to investigate the effectiveness of the proposed induction heating system. Induction heating by eddy currents is very interesting because of: (i) the possibility of controlling the internal generation from a volumetric distribution to an almost surface distribution and (ii) the possibility of modulating almost arbitrarily the waveform of the internal g
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Frąckowiak Wojciech, Bruchwald Oliver, Reimche Wilfried, Bach Friedrich-Wilhelm, and Jürgen Maier Hans. "High Frequency Eddy-Current and Induction Thermography Inspection Techniques for Turbine Components." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2014. https://doi.org/10.3233/978-1-61499-407-7-226.

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Conventional non-destructive eddy-current testing and induction-based thermographic techniques do not allow for the characterization and evaluation of a turbine blade's substrate material and the thin corrosion protective layer (20...50 μm) separately, because of the low electrical conductivity of 0.5–1.5 MS/m and the relatively large eddy-current penetration depth at standard testing frequencies. Using testing frequencies in the megahertz range limits the inductively excited volume to the near-subsurface region and enables the layer and substrate materials to be individually
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Ba, Abdoulaye, Qiuji Yi, Junzhen Zhu, et al. "Impact Damages Detection on CFRP Using Eddy Current Pulsed Thermography." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2020. http://dx.doi.org/10.3233/saem200025.

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Carbon Fiber Reinforced Polymer (CFRP) materials are widely used in aerospace due to their low weigh to strength ratio. Non-destructive Testing (NDT) Techniques becomes a necessity with increasing use of CFRP materials. Induction Thermography is a new NDT technique that can be exploited as a promising fast and global control. However, the detection of typical flaws in carbon composites such as delamination, fibers rupture and impact damages need to be further investigated in order to optimize the technique. Optimization can be done in the test configuration level and by the use an appropriate
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"Investigation of Helmholtz coils for edge structure using inductive thermography." In Structural Health Monitoring and Integrity Management. CRC Press, 2015. http://dx.doi.org/10.1201/b18510-64.

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Deng, Shuwen, Suixian Yang, and Yong Yao. "Numerical Simulation on Stress Measurement with Eddy Current Thermography." In Studies in Applied Electromagnetics and Mechanics. IOS Press, 2020. http://dx.doi.org/10.3233/saem200018.

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Stress in components will lead to the change of material properties and even failure. Therefore, the assessment for the stress state of components is play an important role in testing industry. As a non-contact and multi-physical field nondestructive testing method, eddy current thermography (ECT) can be applied to detect non-homogeneous electromagnetic characteristics parameter distribution in conductive materials. Internal stress and its distribution in a material will affect the value of electromagnetic characteristic parameters. If induction current applied on conductive material, the Joul
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Conference papers on the topic "Thermographie inductive"

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Schmitt, Guenter, Christian Kaminski, and Renate Lobnig. "NDT of Delamination in or under Thick Organic Coatings Using Active IR Thermography." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07718.

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Abstract The integrity of organic coatings can be impaired by disbonding due to permeation of water vapor in temperature and osmotic gradients between the outer environment and the base metal surface, due to cathodic protection at locally destructed coatings or simply by poor adhesion. For thin coatings the degree of delamination is easily determined by the intensity of blisters which generally arise already after short exposure periods. However, thick coatings with thicknesses above 2 mm take much longer for blistering and larger delaminations, and develop visible blisters only in an advanced
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García, Juan Esteban, Laura Álvarez-Gil, and Alejandro Restrepo-Martínez. "Active thermography strategy in phantom models under magnetic induction: a new perspective for the hyperthermia." In Optics and Photonics for Information Processing XVIII, edited by Khan M. Iftekharuddin, Abdul A. S. Awwal, Andrés Márquez, and Victor Hugo Diaz-Ramirez. SPIE, 2024. http://dx.doi.org/10.1117/12.3028053.

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Muniategui, Ander, Eider Gorostegui-Colinas, Angel Cifuentes, Ander González Conde, Jose Manuel Ruiz Lorite, and Beate Oswald-Tranta. "Deep-learning-based crack detection and length determination for inductive thermography inspections on Inconel 718 and Haynes 282 TIG welded components." In Thermosense: Thermal Infrared Applications XLVII, edited by Giovanni Ferrarini, Fernando López, and Peter Spaeth. SPIE, 2025. https://doi.org/10.1117/12.3053711.

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Tout, karim, and patrick Bouteille. "Defect detection on inductive thermography images using convolutional neural networks." In 16th Quantitative InfraRed Thermography conference. QIRT Council, 2022. http://dx.doi.org/10.21611/qirt.2022.3037.

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Inductive infrared thermography has been proven as an interesting solution for the inspection of surface defects. However, inductive thermography images can be noisy or present large variations in contrast and texture. Combine that with the large variability in surface defects shapes, sizes and types, the defect detection task becomes very complex. Defect detection methods based on convolutional neural network (CNN) proved their efficiency for complex detection tasks. This paper discusses two main approaches of defect detection with CNN : classification and object detection. Detection results
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Zhao, Jian, Bin Gao, Fasheng Qiu, Qizhi Feng, Peng LU, and Gui Yun Tian. "Electrostatic Induction Thermography." In 2017 Far East NDT New Technology & Application Forum (FENDT). IEEE, 2017. http://dx.doi.org/10.1109/fendt.2017.8584611.

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Oswald-Tranta, B., and C. Tuschl. "Detection of short fatigue cracks by inductive thermography." In 2020 Quantitative InfraRed Thermography. QIRT Council, 2020. http://dx.doi.org/10.21611/qirt.2020.033.

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Oswald-Tranta, B., and R. Schmidt. "Crack depth determination with inductive thermography." In SPIE Sensing Technology + Applications, edited by Sheng-Jen (Tony) Hsieh and Joseph N. Zalameda. SPIE, 2015. http://dx.doi.org/10.1117/12.2176333.

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Noethen, Matthias, and Norbert Meyendorf. "Defect characterization by inductive heated thermography." In REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: Volume 31. AIP, 2012. http://dx.doi.org/10.1063/1.4716266.

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Safai, Morteza, Gary Georgeson, and Kimberly Meredith. "Thermographic non-destructive testing using inductive thermal excitation." In The 15th International Symposium on: Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring, edited by Peter J. Shull, H. Felix Wu, Aaron A. Diaz, and Dietmar W. Vogel. SPIE, 2008. http://dx.doi.org/10.1117/12.777097.

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Oswald-Tranta, B., G. Wally, and J. Oswald. "A semi-analytical model for the temperature distribution of thermo-inductive heating." In 2006 Quantitative InfraRed Thermography. QIRT Council, 2006. http://dx.doi.org/10.21611/qirt.2006.034.

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