DocumentCode
2814756
Title
Employing magnetic sensor array for inspecting cracks in a pipeline
Author
Kim, Jungmin ; Choi, Myoungki ; Lee, Jinyi
Author_Institution
Grad. Sch., Dept. of Control & Instrum. Eng., Chosun Univ., Gwangju, South Korea
fYear
2011
fDate
22-24 Feb. 2011
Firstpage
273
Lastpage
276
Abstract
In this paper, an NDT method for detecting cracks in a rotor bore is proposed. A linearly integrated Hall sensor array (LIHaS) with a small yoke-type magnetizer measures the distribution of a magnetic field (DMF) in a rotor bore. The crack information is then extracted by analyzing the DMF. In the sample test, an axis-directional crack and an arc-directional crack with the length of 0.9 mm was detected with the width of the crack at 0.1 mm. The cracks had depths of 0.2 mm and 0.5 mm, respectively.
Keywords
crack detection; magnetic field measurement; magnetic sensors; nondestructive testing; pipelines; rotors; sensor arrays; NDT method; arc-directional crack; axis-directional crack; inspection; linearly integrated Hall sensor array; magnetic field; magnetic sensor array; pipeline; rotor bore; small yoke-type magnetizer; Arrays; Magnetic circuits; Magnetic field measurement; Magnetic fields; Magnetic flux leakage; Magnetic resonance imaging; Rotors; Crack; Damage Tolerance; Magnetic Camera; NDT; Pipe;
fLanguage
English
Publisher
ieee
Conference_Titel
Sensors Applications Symposium (SAS), 2011 IEEE
Conference_Location
San Antonio, TX
Print_ISBN
978-1-4244-8063-0
Type
conf
DOI
10.1109/SAS.2011.5739790
Filename
5739790
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