Results 171 to 180 of about 253,309 (213)
Pulsed-Active Microwave Thermography [PDF]
2022 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2022 Active microwave thermography (AMT) is a thermographic nondestructive testing and evaluation techniquethat utilizes an electromagnetic-based excitation with a subsequent infrared measurement of the surface thermal profile of the material or structure of interest.
Logan M. Wilcox +2 more
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Visualization of defects in glass through pulsed thermography
Applied Optics, 2020 Pulsed thermography was exploited to identify the presence of glass defects in order to get an indication of the conservation status of archaeological glass. Indeed, the process of degradation in artifacts subjected to centuries of burial can be of great relevance. More specifically, we evaluated the potential of pulsed thermography to map the presence
Melada J. +6 more
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Pulsed Eddy Current Thermography and Applications
, 2011 In this paper we report on the application of the pulsed eddy current thermography inspection technique to the detection and quantification of defects in a variety of materials. After introducing the appropriate modelling and simulation techniques an overview of a typical PEC thermography system setup is provided.
Tian, GY +5 more
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Pulsed phase thermography reviewed
Quantitative InfraRed Thermography Journal, 2004Pulsed Phase Thermography has considerably evolved since it was originally introduced in 1996. In this paper, a general review of the technique is presented. The different types of uncertainties related to data acquisition and processing are identified. Equivalence between discrete and continuous Fourier Transforms when applied to thermographic data is
Clemente Ibarra-Castanedo +1 more
exaly +2 more sources
NDT and E International, 2019
Abstract Eddy current pulsed thermography (ECPT) and long pulse thermography (LPT) are two emerging non-destructive evaluation techniques that have been recently used for sub-surface defect detection in both metallic and composite components. This paper provides a comparative analysis of these two methods by focussing on the detection of flat bottom ...
Guiyun Tian, Francesco Ciampa
exaly +4 more sources
Abstract Eddy current pulsed thermography (ECPT) and long pulse thermography (LPT) are two emerging non-destructive evaluation techniques that have been recently used for sub-surface defect detection in both metallic and composite components. This paper provides a comparative analysis of these two methods by focussing on the detection of flat bottom ...
Guiyun Tian, Francesco Ciampa
exaly +4 more sources
Diagnostics of panel paintings using holographic interferometry and pulsed thermography
Quantitative InfraRed Thermography Journal, 2010 Holographic and thermographic techniques have been recently applied in artwork diagnostics for the quantitative evaluation of defect size and depth in laboratory samples of artworks.
Domenica Paoletti +2 more
exaly +2 more sources
Pulse phase infrared thermography
NDT & E International, 1996An approach is proposed which combines simultaneously advantages both of pulse (PT) and modulated infrared thermography. In a nondestructive evaluation perspective, the specimen is pulse heated as in PT and the mix of frequencies of the thermal waves launched into the specimen is unscrambled by performing the Fourier transform of the temperature ...
X Maldague, S Marinetti
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Pulsed eddy current thermography: system development and evaluation
Insight - Non-Destructive Testing and Condition Monitoring, 2010There is a need for fast and efficient techniques to inspect engineering structures and complex components such as aircraft turbine blades to identify potential sites of failure. Pulsed eddy current (PEC) thermography is a new inspection technique which allows the user to capture the eddy current distribution in a component or structure using infrared ...
Wilson J +4 more
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Quantitative InfraRed Thermography Journal, 2008 In this study, experimental data from two artwork specimens was acquired and processed by pulsed phase thermography (PPT) and holographic interferometry. The first specimen was a wood painting with a variety of damages typical of this kind of pieces. A
Domenica Paoletti +2 more
exaly +2 more sources
Double pulse infrared thermography
NDT & E International, 2004Abstract In this paper we propose a simple enhancing protocol for pulsed infrared thermography. The method is based on stimulating the specimen with two heating pulses separated by a short time interval delta. This approach was tested on several specimens of low and high thermal diffusivity and showed to provide higher thermal contrasts when an ...
X Maldague, A Ziadi, M Klein
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