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Improvement of ultrasonic testing by phased arrays
Nuclear Engineering and Design, 1983Abstract Methods for defect reconstruction and classification using the flexible and fast electronic beam forming with phased arrays have been described. Using the electronic sector scan, a reflecting point is represented as a short circular curve, the length of which is dependent upon beam width and system sensitivity.
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Researches on ultrasonic image revise for phased array ultrasonic test of train wheel
SPIE Proceedings, 2011Ultrasonic image formed by Phased Array Ultrasonic probes placed on wheel tread is deformed. Especially for ultrasonic image around area of wheel disk hole, because that area has a complex construction and a long ultrasonic path. According to probes layout and beam angle, correction algorithms are designed to revise deformed ultrasonic images. Tests
Yu Zhang +5 more
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Review of Phased Array Ultrasonic Testing of Weld Joints
Journal of Marine and Engineering TechnologyWelding is a prevalent joining technique used on metals in industrial manufacturing. It is very important to detect welding defects that may occur without damaging the welding constructions. The conventional ultrasonic inspection is the most widely used non-destructive test method for the detection of weld defects. Phased Array Ultrasonic Testing (PAUT)
Hüseyin Uzun, Desi Gustiani
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Application of phased arrays in ultrasonic nondestructive testing
2020The object of the research is ultrasonic nondestructive testing. The purpose of the work is to make analytical comparison of the techniques for ultrasonic with phased arrays. In the course of research the most promising techniques for ultrasonic imaging with phased arrays was determined according to analytical study of literature sources.
Fidel Castro Parimala Rangan +1 more
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Improved ultrasonic testing by phased array technique and its application
Nuclear Engineering and Design, 1985Abstract The phased array ultrasonic testing method is available for beam steering and focusing, and then the focused beam divergence angle can be narrowed and the sound level can be intensified at the focused region. In the present study, two examples of phased array application which are the linear scanning mode operation and the sector scanning ...
I. Komura +4 more
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Application of Ultrasonic Phased Array Testing Technology on Ladle Trunnion
2013The welding quality of the trunnion’s root welds is critical to the safety operation of ladles. However, due to the complex structure of the detecting surface, the non-destructive testing of these welds has been a significant problem. Ultrasonic phased array technology can achieve flexible and controllable ultrasound beam by changing the time delay of ...
Dong Hu, Qiang Wang, Changming Yuan
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New flaw feature extraction method for ultrasonic phased array nondestructive testing
2010 8th World Congress on Intelligent Control and Automation, 2010To realize automatic flaw classification of an ultrasonic phased array system, the key is to extract flaw feature that can mostly represent flaw's nature from ultrasonic signals. As ultrasonic echoes are nonstationary signals, wavelet packet transform (WPT) is a common feature extraction method. But it is fit for off-line signal analysis.
null Jian Li +2 more
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Phased-Array Laser Ultrasonic Testing with Sparse Total Focusing Imaging Method
2019 Far East NDT New Technology & Application Forum (FENDT), 2019In order to further improve the detectability of laser ultrasonic testing method for internal defects of materials, this paper studies a new phased array laser ultrasonic detection and imaging method based on the full matrix capture technology and total focusing method.
Xing Kou +3 more
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Annular Phased Array Dynamic Focusing Method for Large Target Ultrasonic Testing
Ferroelectrics, 2014A novel method called dynamic focusing immersed ultrasonic testing (DFIUT) is proposed which utilizes an annular phased array ultrasonic transducer (APAUT) and one of the distinguished advantages is dynamic focusing. The proposed DFIUT is aimed at solving the focus deviation problem in the detection of large targets. The design methodology of APAUT and
Yue Wu +4 more
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Russian Journal of Nondestructive Testing, 2013
This paper considers the features of forming the images of reflectors using phased antenna array technology and the images obtained by the C-SAFT method by echo signals measured in by double-scanning mode. It is shown that in some cases the images obtained by the phased antenna array technology are less informative, while the images obtained by the C ...
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This paper considers the features of forming the images of reflectors using phased antenna array technology and the images obtained by the C-SAFT method by echo signals measured in by double-scanning mode. It is shown that in some cases the images obtained by the phased antenna array technology are less informative, while the images obtained by the C ...
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