Title :
A sensitive optical polarimetric imaging technique for surface defects detection of aircraft turbine engines
Author :
Giakos, G.C. ; Fraiwan, L. ; Patnekar, N. ; Sumrain, S. ; Mertzios, G.B. ; Periyathamby, S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Akron, OH, USA
Abstract :
The design of an optical polarimetric imaging system, aimed at detecting cracks or structural defects on the surface of rotating aircraft engine shafts, is presented. The experimental results clearly indicate that high signal-to-noise ratio signals can be obtained, so that it minimizes the use of processing techniques.
Keywords :
crack detection; image resolution; image texture; jet engines; polarimetry; rotation; surface cracks; surface texture; SNR; aircraft turbine engines; crack detection; high contrast resolution; optical polarimetric imaging technique; phase-contrast imaging technique; polarimetric detection; polarimetry; rotating aircraft engine shafts; structural defects; surface defect detection; surface texture imaging; Aircraft propulsion; Engines; Optical design; Optical imaging; Optical sensors; Shafts; Signal processing; Signal to noise ratio; Surface cracks; Turbines;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2003.821497
