Results 11 to 20 of about 5,622 (205)
Nondestructive Evaluation of BSCC Artificial Heart Valves [PDF]
MATEC Web of Conferences, 2022 The subject of investigation is a set of four artificial heart valves made of electrically conductive material, namely the alloy Ti-6Al-4V. Notches of defined geometry with gradually increasing depth were formed on these BSCC (Bjork-Shiley Convexo ...
Sapieta Milan +3 more
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Combined lock-in thermography and heat flow measurements for analysing heat dissipation during fatigue crack propagation [PDF]
Fracture and Structural Integrity, 2015 During fatigue crack propagation experiments with constant force as well as constant stress intensity lock in thermography and heat flow measurements with a new developed peltier sensor have been performed.
J. Baer, A. Vshivkov, O. Plekhov
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Estimating Thermal Material Properties Using Solar Loading Lock-in Thermography
Applied Sciences, 2021 This work investigates the application of lock-in thermography approach for solar loading thermography applications. In conventional lock-in thermography, a specimen is subjected to a periodically changing heat flux.
Samuel Klein +2 more
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Applied Sciences, 2023 When studying paintings with active infrared thermography (IRT), minimizing the temperature fluctuations and thermal shock during a measurement becomes important.
Michaël Hillen +6 more
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Ensemble Joint Sparse Low Rank Matrix Decomposition for Thermography Diagnosis System [PDF]
, 2021 Composite is widely used in the aircraft industry and it is essential for manufacturers to monitor its health and quality. The most commonly found defects of composite are debonds and delamination.
Ahmedtl, Junaid +3 more
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Metals, 2023 This report is on convolution neural network (CNN) fusion lock-in thermography, which can implement the intelligent identification of defects for aviation honeycomb sandwich composites (HSCs).
Xinjian Wang +5 more
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Multi-scale gapped smoothing algorithm for robust baseline-free damage detection in optical infrared thermography [PDF]
, 2020 Flash thermography is a promising technique to perform rapid non-destructive testing of composite materials. However, it is well known that several difficulties are inherently paired with this approach, such as non-uniform heating, measurement noise and ...
Hedayatrasa, Saeid +4 more
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Lock-in and pulsed thermography for solar cell testing [PDF]
Applied 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
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Applied Sciences, 2022 Recently, thermographic testing has been applied as a non-destructive evaluation technology for composite materials due to its remarkable advantages, such as its non-contact, non-destructive, and high-speed properties, it is harmless to the human body ...
Yoonjae Chung +3 more
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Lock‐In Thermography to Analyze Plasmonic Nanoparticle Dispersions [PDF]
Particle & Particle Systems Characterization, 2019 AbstractThe physicochemical properties of nanoparticles (NPs) strongly rely on their colloidal stability, and any given dispersion can display remarkably different features, depending on whether it contains single particles or clusters. Thus, developing efficient experimental methods that are able to provide accurate and reproducible measures of the NP
Lukas Steinmetz +7 more
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