Title :
Non-destructive testing of steel sample by non-stationary thermal wave imaging
Author :
Arora, Vanita ; Mulaveesala, Ravibabu ; Subbarao, Ghali Venkata
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Ropar, Ropar, India
Abstract :
This contribution demonstrates an application of non-stationary frequency modulated thermal wave imaging technique for the numerical characterization of a mild steel sample containing random shape defects. Frequency and time domain based phase analysis schemes are implemented on the recorded thermal profiles and their detectabilities are compared by taking signal to noise ratio into consideration.
Keywords :
frequency-domain analysis; infrared imaging; nondestructive testing; numerical analysis; steel; time-domain analysis; frequency domain based phase analysis scheme; mild steel sample; nondestructive testing; nonstationary frequency modulated thermal wave imaging technique; numerical characterization; random shape defect; signal to noise ratio; steel sample; thermal profile recording; time domain based phase analysis scheme; Frequency modulation; Frequency-domain analysis; Imaging; Materials; Photothermal effects; Steel; Testing; Finite Element Modeling; Frequency Modulated Thermal Wave Imaging; Non-destructive testing; Time domain phase images;
Conference_Titel :
Signal Processing And Communication Engineering Systems (SPACES), 2015 International Conference on
Conference_Location :
Guntur
DOI :
10.1109/SPACES.2015.7058212
