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Analyzing and modelling the accelerated stress relaxation caused by pulsed current of Ti₂AlNb alloy foils. [PDF]

Sci Rep
Zhao J, Gao T, Qu B, Cui M, Xu R.
europepmc   +1 more source

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Pulsed phase thermography reviewed

Quantitative InfraRed Thermography Journal, 2004
Pulsed 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, Xavier Maldague   +1 more
exaly   +2 more sources

Advances in pulsed phase thermography

Infrared Physics and Technology, 2002
In this paper, fundamental theory of the pulsed phase thermography (PPT) processing method is presented including notes on thermal waves, pulsed thermography and lockin thermography. Moreover, advances in signal inversion for PPT using wavelets are included along with discussions about pulse shaping and polynomial fitting for signal improvement ...
Xavier Maldague
exaly   +2 more sources

Comparative analysis of eddy current pulsed thermography and long pulse thermography for damage detection in metals and composites

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 ...
Gui Yun Tian, Francesco Ciampa
exaly   +4 more sources

Pulsed-Active Microwave Thermography

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, Mathias Bonmarin, Kristen M. Donnell   +2 more
openaire   +1 more source

Pulse phase infrared thermography

NDT & E International, 1996
An 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
openaire   +3 more sources

Pulsed eddy current thermography: system development and evaluation

Insight - Non-Destructive Testing and Condition Monitoring, 2010
There 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, Tian GY, Abidin IZ, Yang SX, Almond D   +4 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., Ludwig N., Micheletti F., Orsilli J., Gargano M., Grifoni E., Bonizzoni L.   +6 more
openaire   +3 more sources

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, Wilson, John; id_orcid 0000-0003-2139-1250, Cheng, L, Almond, Darryl P, Kostson, Erik, Weekes, Benjamin   +5 more
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Double pulse infrared thermography

NDT & E International, 2004
Abstract 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
openaire   +1 more source