Non-destructive examination of paint coatings using the thermal wave interferometry technique

1995 ◽  
Vol 30 (9) ◽  
pp. 2251-2253 ◽  
Author(s):  
M. M. Moksin ◽  
D. P. Almond
Keyword(s):  
Thermal Wave ◽  
Paint Coatings ◽  
Non Destructive

NON-DESTRUCTIVE EVALUATION OF CONCRETE STRUCTURES BY NON-STATIONARY THERMAL WAVE IMAGING

2012 ◽  
Vol 32 ◽  
pp. 39-48 ◽  
Author(s):  
Ravibabu Mulaveesala ◽  
Soma Sekhara Balaji Panda ◽  
Rupla Naik Mude ◽  
Muniyappa Amarnath
Keyword(s):  
Thermal Wave ◽  
Concrete Structures ◽  
Non Destructive Evaluation ◽  
Wave Imaging ◽  
Non Destructive ◽  
Thermal Wave Imaging

Recent advances in thermal wave detection and ranging for non-destructive testing and evaluation of materials

2013 ◽  
Author(s):  
Ravibabu Mulaveesala ◽  
V. S. Ghali ◽  
Vanita Arora ◽  
Juned A. Siddiqui ◽  
Amarnath Muniyappa ◽  
...  
Keyword(s):  
Thermal Wave ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Wave Detection ◽  
Recent Advances ◽  
Non Destructive ◽  
Testing And Evaluation

Imaging with optically generated thermal waves

1986 ◽  
Vol 320 (1554) ◽  
pp. 181-186 ◽  
Keyword(s):  
Thermal Wave ◽  
Optical Power ◽  
Thermal Waves ◽  
Thermal Structures ◽  
Non Destructive

By absorption of modulated optical power, a thermal wave is generated that interacts with thermal discontinuities. Imaging with scanned local thermal-wave probing is suited for non-contacting and non-destructive inspection of thermal structures in solids.

Stress-Temperature Behavior and Stress Relaxation in Ti/Al-0.5%Cu/TiN and TiN/W Thin Films

1995 ◽  
Vol 403 ◽  
Author(s):  
L. Doucet ◽  
A. Brun ◽  
H. Jaouen ◽  
M. Dupeux ◽  
M. Ignat
Keyword(s):  
Thin Films ◽  
Stress Relaxation ◽  
Yield Strength ◽  
Measurement System ◽  
Thermal Wave ◽  
Intrinsic Stress ◽  
Temperature Behavior ◽  
Induce Stress ◽  
Stress Variations ◽  
Non Destructive

AbstractThe stress behavior of two structures (Ti/Al-0.5%Cu/TiN and TiN/W) has been analyzed versus temperature up to 400 °C using the Flexus measurement system. Microstructure modifications induce stress variations with temperature. Furthermore, stress relaxation after annealing has been investigated. Al-based metallization stress is essentially due to thermal issues and reaches rapidly its yield strength whereas the W film exhibits high intrinsic stress. Microstructural observations afte deposition and after annealing have been conducted using a non destructive technique, the Thermal Wave Imager.

Review on Key Technologies of Infrared Thermal Wave Detection Technology in Parts Defects

2012 ◽  
Vol 542-543 ◽  
pp. 814-817
Author(s):  
Jian Min Zhou ◽  
Li Juan Fan ◽  
Rui Feng Zhang
Keyword(s):  
Thermal Wave ◽  
Heat Transfer Analysis ◽  
Research Progress ◽  
Destructive Testing ◽  
Existing Problems ◽  
Wave Detection ◽  
Detection Technology ◽  
Key Technologies ◽  
New Type ◽  
Non Destructive

Infrared thermal wave detection technology has been found to be a new type of wide attention non-destructive testing (NDT) method due to its non-contact, non-destructive, rapidity, wide imaging field and advantages of direct observation. Key technologies and the latest research progress of the infrared thermal wave technology in parts defects are reviewed in this paper. The key technologies include the heat stimulator, infrared thermal image processing, heat transfer analysis and etc. The existing problems of the technology are also pointed out.

Thermal-Wave Imaging: A Non-Destructive Technique to Characterize the Electromigration on Al Alloy

1996 ◽  
Vol 210-213 ◽  
pp. 309-316
Author(s):  
A. Brun ◽  
M. Marty ◽  
H. Roede ◽  
C. Gounelle ◽  
F. Giroux
Keyword(s):  
Thermal Wave ◽  
Al Alloy ◽  
Wave Imaging ◽  
Non Destructive ◽  
Thermal Wave Imaging

scholarly journals Numerical Simulation of Non-Destructive Characterization of CFRP Composite Through Frequency Modulated Thermal wave Imaging

2019 ◽  
Vol 8 (4) ◽  
pp. 9754-9757
Keyword(s):  
Numerical Simulation ◽  
Defect Detection ◽  
Thermal Wave ◽  
Pulse Compression ◽  
Principal Component ◽  
Random Projection ◽  
Area Of Interest ◽  
Wave Imaging ◽  
Non Destructive ◽  
Thermal Wave Imaging

Non-destructive testing plays a vital role in industrial and biomedical applications. Non-stationary stimulation based active Infrared thermography is an emerging area of interest in subsurface defect detection and visualization. In present article, frequency modulated thermal wave imaging is employed on a numerical simulation to detect defects of CFRP specimen and applied various post processing techniques such as FFT phase, Pulse compression, principal component analysis and random projection transform for better defect detection. Defect Signal to noise ratios considered as merit of analysis.

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