Application of Neuro-Wavelet Algorithm in Ultrasonic-Phased Array Nondestructive Testing of Polyethylene Pipelines
Joint Authors
Rostami, Babak
Keighobadi, Jafar
Bohlouli, Reza
Source
Journal of Control Science and Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-08
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Electronic engineering
Information Technology and Computer Science
Abstract EN
Polyethylene (PE) pipelines with electrofusion (EF) joining is an essential method of transportation of gas energy.
EF joints are weak points for leakage and therefore, Nondestructive testing (NDT) methods including ultrasonic array technology are necessary.
This paper presents a practical NDT method of fusion joints of polyethylene piping using intelligent ultrasonic image processing techniques.
In the proposed method, to detect the defects of electrofusion joints, the NDT is applied based on an ANN-Wavelet method as a digital image processing technique.
The proposed approach includes four steps.
First an ultrasonic-phased array technique is used to provide real time images of high resolution.
In the second step, the images are preprocessed by digital image processing techniques for noise reduction and detection of ROI (Region of Interest).
Furthermore, to make more improvement on the images, mathematical morphology techniques such as dilation and erosion are applied.
In the 3rd step, a wavelet transform is used to develop a feature vector containing 3-dimensional information on various types of defects.
In the final step, all the feature vectors are classified through a backpropagation-based ANN algorithm.
The obtained results show that the proposed algorithms are highly reliable and also precise for NDT monitoring.
American Psychological Association (APA)
Bohlouli, Reza& Rostami, Babak& Keighobadi, Jafar. 2012. Application of Neuro-Wavelet Algorithm in Ultrasonic-Phased Array Nondestructive Testing of Polyethylene Pipelines. Journal of Control Science and Engineering،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-468264
Modern Language Association (MLA)
Bohlouli, Reza…[et al.]. Application of Neuro-Wavelet Algorithm in Ultrasonic-Phased Array Nondestructive Testing of Polyethylene Pipelines. Journal of Control Science and Engineering No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-468264
American Medical Association (AMA)
Bohlouli, Reza& Rostami, Babak& Keighobadi, Jafar. Application of Neuro-Wavelet Algorithm in Ultrasonic-Phased Array Nondestructive Testing of Polyethylene Pipelines. Journal of Control Science and Engineering. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-468264
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-468264