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×÷ÕߣºXiaojie Xu

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A Novel High Sensitivity Sensor for Remote Field Eddy Current Non-Destructive Testing Based on Orthogonal Magnetic Field
×÷Õß:Xu, XJ (Xu, Xiaojie)[ 1 ] ; Liu, M (Liu, Ming)[ 1 ] ; Zhang, ZB (Zhang, Zhanbin)[ 1 ] ; Jia, YL (Jia, Yueling)[ 2 ]


SENSORS


¾í: 14
ÆÚ: 12
Ò³: 24098-24115
DOI: 10.3390/s141224098

³ö°æÄê: DEC 2014

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SENSORS  

JCR® Àà±ð JCR ·ÖÇø
CHEMISTRY, ANALYTICAL  Q2
ELECTROCHEMISTRY  Q3
INSTRUMENTS & INSTRUMENTATION  Q1


Êý¾ÝÀ´×ÔµÚ 2013 °æ Journal Citation Reports®

³ö°æÉÌ MDPI AG, POSTFACH, CH-4005 BASEL, SWITZERLAND

ISSN: 1424-8220

Ñо¿ÁìÓò Chemistry
Electrochemistry
Instruments & Instrumentation



ÕªÒª
Remote field eddy current is an effective non-destructive testing method for ferromagnetic tubular structures. In view of conventional sensors' disadvantages such as low signal-to-noise ratio and poor sensitivity to axial cracks, a novel high sensitivity sensor based on orthogonal magnetic field excitation is proposed. Firstly, through a three-dimensional finite element simulation, the remote field effect under orthogonal magnetic field excitation is determined, and an appropriate configuration which can generate an orthogonal magnetic field for a tubular structure is developed. Secondly, optimized selection of key parameters such as frequency, exciting currents and shielding modes is analyzed in detail, and different types of pick-up coils, including a new self-differential mode pick-up coil, are designed and analyzed. Lastly, the proposed sensor is verified experimentally by various types of defects manufactured on a section of a ferromagnetic tube. Experimental results show that the proposed novel sensor can largely improve the sensitivity of defect detection, especially for axial crack whose depth is less than 40% wall thickness, which are very difficult to detect and identify by conventional sensors. Another noteworthy advantage of the proposed sensor is that it has almost equal sensitivity to various types of defects, when a self-differential mode pick-up coil is adopted.

¹Ø¼ü´Ê
×÷Õ߹ؼü´Ê:non-destructive testing; remote field eddy current; sensor; orthogonal magnetic field; finite element simulation

KeyWords Plus:COIL; INSPECTION; CRACKS

×÷ÕßÐÅÏ¢
ͨѶ×÷ÕßµØÖ·: Xu, XJ (ͨѶ×÷Õß)       Air Force Engn Univ, Sch Informat & Nav, Xian 710077, Peoples R China.


µØÖ·:        [ 1 ] Air Force Engn Univ, Sch Informat & Nav, Xian 710077, Peoples R China
       [ 2 ] Air Force Engn Univ, Sch Equipment Management & Safety Engn, Xian 710077, Peoples R China


µç×ÓÓʼþµØÖ·:dr_xxj@163.com; lming0601@163.com; zzbin@163.com; jyl1974@126.com

»ù½ð×ÊÖúÖÂл
»ù½ð×ÊÖú»ú¹¹ ÊÚȨºÅ
Chinese National Natural Science Fund  51107148  
Natural Science Foundation of Shaanxi Province  2011JQ7006  
²é¿´»ù½ð×ÊÖúÐÅÏ¢¹Ø±Õ»ù½ð×ÊÖúÐÅÏ¢   

This work was support by The Chinese National Natural Science Fund (51107148) and The Natural Science Foundation of Shaanxi Province (2011JQ7006).

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MDPI AG, POSTFACH, CH-4005 BASEL, SWITZERLAND

Àà±ð / ·ÖÀà
Ñо¿·½Ïò:Chemistry; Electrochemistry; Instruments & Instrumentation

Web of Science Àà±ð:Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation

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ÎÄÏ×ÀàÐÍ:Article

ÓïÖÖ:English

Èë²ØºÅ: WOS:000346794300094

PubMed ID: 25615738

ISSN: 1424-8220

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Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports®
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IDS ºÅ: AX2SK

Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 23

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