Title :
Enhancement in image quality in ultrasonic flaw detection process in rotor turbine using SAFT
Author_Institution :
Ansaldo Energia S.p.A., Genova, Italy
Abstract :
A new system for nondestructive evaluation is proposed in this paper. The system performs boresonic analysis for flaw detection in the rotor turbine. In order to enhance the quality of the ultrasonic investigation, a new approach based on the synthetic aperture focusing technique (SAFT) has been applied. The paper provides a brief overview on the boresonic analysis, with emphasis on its use for the evaluation of the residual life or rotors. Moreover, the developed system is described and some preliminary results concerning the post-processing operations are reported.
Keywords :
flaw detection; image enhancement; rotors; turbines; ultrasonic focusing; ultrasonic imaging; SAFT; boresonic analysis; image quality enhancement; nondestructive evaluation; rotor turbine; synthetic aperture focusing technique; ultrasonic flaw detection process; Focusing; Image quality; Investments; Performance evaluation; Production; Pulse measurements; Steam engines; Steel; Stress; Turbines;
Conference_Titel :
Imaging Systems and Techniques, 2004. (IST). 2004 IEEE International Workshop on
Print_ISBN :
0-7803-8591-8
DOI :
10.1109/IST.2004.1397296