Results 11 to 20 of about 1,116 (149)

Study of multi-long-pulse thermography using high-power fiber lasers

open access: yesAIP Advances, 2023
Active infrared thermography tests are performed using a high-power continuous fiber laser as the excitation source. Multi-long-pulses (MLPs) are used to detect deep defects in samples with reduced heating.
Gangbo Hu   +4 more
doaj   +1 more source

Lock-in and pulsed thermography for solar cell testing [PDF]

open access: yesApplied Optics, 2018
Inspection of solar cells is an important part of their production process because even small defects can cause a significant drop of a whole photovoltaic module performance. LED illuminated lock-in (LEDILIT) and flash-pulse thermographic techniques (FPT) were compared in this study. Lock-in methods are more commonly used for solar cell inspection. The
L. Muzika, M. Švantner, M. Kučera
openaire   +4 more sources

Pulsed Thermography Dataset for Training Deep Learning Models

open access: yesApplied Sciences, 2023
Pulsed thermography is an indispensable tool in the field of non-destructive evaluation. However, the data generated by this technique can be challenging to analyze and require expertise to interpret.
Ziang Wei   +3 more
doaj   +1 more source

A Method of Defect Depth Estimation for Simulated Infrared Thermography Data with Deep Learning

open access: yesApplied Sciences, 2020
Infrared thermography has already been proven to be a significant method in non-destructive evaluation since it gives information with immediacy, rapidity, and low cost. However, the thorniest issue for the wider application of IRT is quantification.
Qiang Fang, Xavier Maldague
doaj   +1 more source

A Study on the Effectiveness of Spatial Filters on Thermal Image Pre-Processing and Correlation Technique for Quantifying Defect Size

open access: yesSensors, 2022
Thermal imaging plays a vital role in structural health monitoring of various materials and provides insight into the defect present due to aging, deterioration, and fault during construction.
Ho Jong Kim   +6 more
doaj   +1 more source

A new thermography using inelastic scattering analysis of wavelength-resolved neutron transmission imaging

open access: yesScientific Reports, 2023
Thermography using energy-dependent neutron transmission imaging can non-invasively and non-destructively visualize a real-space distribution of interior temperatures of a material in a container.
Hirotaka Sato   +4 more
doaj   +1 more source

A Review of Microwave Thermography Nondestructive Testing and Evaluation

open access: yesSensors, 2017
Microwave thermography (MWT) has many advantages including strong penetrability, selective heating, volumetric heating, significant energy savings, uniform heating, and good thermal efficiency.
Hong Zhang   +5 more
doaj   +1 more source

Recent Progress in Infrared Thermal Imaging Nondestructive Testing Technology

open access: yesJournal of Harbin University of Science and Technology, 2020
Infrared thermography is a new type of digital non destructive testing technology which has developed rapidly in recent years, because it has the advantages like convenient, efficient, intuitive, large detection area and long distance non contact ...
WEI Jia cheng   +4 more
doaj   +1 more source

Enhanced Infrared Image Processing for Impacted Carbon/Glass Fiber-Reinforced Composite Evaluation

open access: yesSensors, 2017
In this paper, an infrared pre-processing modality is presented. Different from a signal smoothing modality which only uses a polynomial fitting as the pre-processing method, the presented modality instead takes into account the low-order derivatives to ...
Hai Zhang   +7 more
doaj   +1 more source

Determination of Thermal Diffusivity of Austenitic Steel Using Pulsed Infrared Thermography

open access: yesArchives of Metallurgy and Materials, 2014
The simple method of determining thermal diffusivity of solid materials at room temperature using the pulsed infrared thermography (IRT) is proposed. The theoretical basis of the method and experimental results are presented.
Kochanowski K.   +3 more
doaj   +1 more source

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