The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS
Transactions ID Number: 89-812
Full Name: Yanhua Zhang
Position: Professor
Age: ON
Sex: Female
Address: College of Information and Communication Engineering, North University of China
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E-mail address: tyzyhzyh@126.com
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Title of the Paper: study on ultrasonic detecting technology of profiled component
Authors as they appear in the Paper: Yanhua Zhang,Lu Yang,Haijun Cao
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Number of paper pages: 10
Abstract: The profiled component has some structural features, such as thin wall, small diameter and corner angle on inner wall. The features make it very difficult to detect the profiled component with non-destructive examination method. According to the principle of ultrasonic creeping wave, a grouped ultrasonic detecting method is put forward to detect the standard defects in inner and outer of profiled component. Based on comparing defect echo with inner edge wave, feature extraction method of two characteristics of amplitude and time is put forward to extract defects and to eliminate the interference of inner edge wave. In order to overcome the one-sidedness disadvantage of single probe data, data fusion technology of synthesis local decisions of three probes is used to determine defects, which improves the accuracy of defect judgement. Three characteristic values of period, duration time and amplitude of echo signal are used to comprehensively evaluate the defect type.!
The testing results indicate that the detection method and signal processing method can meet the application requirements of accuracy and reliability, and it would have good application foreground for on-line detection.
Keywords: Profiled component; Creeping wave; Inner edge wave; Time characteristic; Amplitude characteristic; Data Fusion
EXTENSION of the file: .doc
Special (Invited) Session: Study on an Ultrasonic Detecting Method of Profiled Component
Organizer of the Session: 637-200
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IP ADDRESS: 221.205.49.1
