Experimental investigation on noise rejection capabilities of pulse compression favourable frequency‐modulated thermal wave imaging

2019 ◽  
Vol 55 (6) ◽  
pp. 352-353 ◽  
Author(s):  
K. Kaur ◽  
R. Mulaveesala
Keyword(s):  
Experimental Investigation ◽  
Thermal Wave ◽  
Pulse Compression ◽  
Noise Rejection ◽  
Wave Imaging ◽  
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.

scholarly journals Defect characterisation using pulse compression-based quadratic frequency modulated thermal wave imaging

2020 ◽  
Vol 14 (2) ◽  
pp. 165-172 ◽  
Author(s):  
Shaik Subhani ◽  
Gampa V.P. Chandra Sekhar Yadav ◽  
Venkata Subbarao Ghali
Keyword(s):  
Thermal Wave ◽  
Pulse Compression ◽  
Wave Imaging ◽  
Defect Characterisation ◽  
Thermal Wave Imaging
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