RESEARCH on AUTOMATIC DEFECT LOCALIZATION for ULTRASONIC NORMAL PROBE DETECTION on RAILWAY WHEEL

被引：2
|
作者：
Gao Xiao-rong [1 ]
Wang Zhen
Peng Chao-yong
Zhang Yu
机构：
[1] SW Jiaotong Univ, Photoelect Engn Inst, Chengdu 610031, Sichuan, Peoples R China
来源：
SEVENTH INTERNATIONAL SYMPOSIUM ON PRECISION ENGINEERING MEASUREMENTS AND INSTRUMENTATION | 2011年 / 8321卷
关键词：
Wheel Detection; Ultrasonic Phased Array; Localize Defects; Region Connection; Region Growing;
D O I：
10.1117/12.905202
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Wheel detection is a significant guarantee for ensuring train-running safety. Ultrasonic phased array inspection technology is popularly applied in railway wheel and axle inspection at present. The objective of our study is to develop a data processing algorithm which makes use of image processing techniques in order to assist ultrasonic inspection operators in their difficult task. The research work described in this paper has thus been done with this objective in mind and it concerns a method that we have developed for automatic detection of defects. This method is based on region connection and region growing and it allows to position defects in the wheel under inspection by automatic analysis of the ultrasonic data.
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页数：9
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