Magnetic flux leakage detection in non destructive tests performed on ferromagnetic pieces, using signal processing techniques and data mining

2014 ◽  
Author(s):  
Aldair Barajas Aldana ◽  
Jaime Parra-Raad ◽  
Carlos Julio Arizmendi
Keyword(s):  
Data Mining ◽  
Signal Processing ◽  
Magnetic Flux ◽  
Magnetic Flux Leakage ◽  
Leakage Detection ◽  
Processing Techniques ◽  
Non Destructive ◽  
Signal Processing Techniques ◽  
Flux Leakage

scholarly journals Inspection of Gas Pipelines Using Magnetic Flux Leakage Technology

2017 ◽  
Vol 17 (3) ◽  
pp. 37-45 ◽  
Author(s):  
Z. Usarek ◽  
K. Warnke
Keyword(s):  
Signal Processing ◽  
Magnetic Flux ◽  
Development Stage ◽  
Magnetic Flux Leakage ◽  
Destructive Testing ◽  
Oil Pipelines ◽  
Recorded Data ◽  
Pipeline Wall ◽  
Non Destructive ◽  
Flux Leakage

Abstract Magnetic non-destructive testing methods can be classified into the earliest methods developed for assessment of steel constructions. One of them is the magnetic flux leakage technology. A measurement of the magnetic flux leakage is quite commonly used for examination of large objects such as tanks and pipelines. Construction of a magnetic flux leakage tool is relatively simple, but a quantitative analysis of recorded data is a difficult task. Therefore, methods of magnetic flux leakage signal processing and analysis are still under development. A magnetic flux leakage in-line-inspection tool called FLUMAG 500 was constructed. FLUMAG 500 was designed for gas and oil pipelines inspection. In this paper principle of operation of FLUMAG 500 was described. Advanced algorithms of the signal processing and analysis was also developed. Results coming from the development stage as well as from the final construction of the tool were presented. Analysis of these results shows that FLUMAG 500 is a suitable tool for detection of corrosion defects in a pipeline wall.

Finite Element Analysis and Experimental Research for Horizontal Tank to Internal Magnetic Flux Leakage Detection

2014 ◽  
Vol 599-601 ◽  
pp. 321-325
Author(s):  
Li Qiang Sun ◽  
Hong Bo Zhu ◽  
Ming Xie ◽  
Ji Xia Li
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Magnetic Flux ◽  
Magnetic Flux Leakage ◽  
Leakage Detection ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Horizontal Tank ◽  
Flux Leakage ◽  
Detection Effect

In view of the petroleum and petrochemical characteristics of horizontal tank, ANSYS software of finite element analysis was carried out on the horizontal tank within the magnetic flux leakage testing, analyzes the influencing factors of defect magnetic flux leakage signals. Experiments verify the finite element analysis results, the experimental results show that the research of horizontal tank within the magnetic flux leakage detection effect is obvious.

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