A preliminary magnetoinductive sensor system for real-time imaging of steel reinforcing bars embedded within concrete

Diego S. Benitez; Sung Quek; Patrick Gaydecki; Vladimir Torres

doi:10.1109/TIM.2008.924939

A preliminary magnetoinductive sensor system for real-time imaging of steel reinforcing bars embedded within concrete

Diego S. Benitez^*
, Sung Quek
, Patrick Gaydecki
, Vladimir Torres

^*Corresponding author for this work

University of Manchester

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

This paper studies the feasibility of using solid-state magnetoinductive probes for detecting and imaging steel reinforcing bars embedded within prestressed and reinforced concrete. Changes in the inductance of the sensor material are directly proportional to the strength of the measured magnetic field parallel to the sensor. Using a square coil of 300 mm × 300 mm × 2.5 mm, 10-mm rebars can be imaged down up to a depth of 100 mm. Experimental results obtained by scanning steel bar specimens are presented. General performance characteristics and sensor limitations are also investigated.

Original language	English
Pages (from-to)	2437-2442
Number of pages	6
Journal	IEEE Transactions on Instrumentation and Measurement
Volume	57
Issue number	11
DOIs	https://doi.org/10.1109/TIM.2008.924939
State	Published - 2008
Externally published	Yes

Keywords

DC magnetic field
Magnetic field imaging
Metal detection
Nondestructive evaluation (NDE)

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10.1109/TIM.2008.924939

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abstract = "This paper studies the feasibility of using solid-state magnetoinductive probes for detecting and imaging steel reinforcing bars embedded within prestressed and reinforced concrete. Changes in the inductance of the sensor material are directly proportional to the strength of the measured magnetic field parallel to the sensor. Using a square coil of 300 mm × 300 mm × 2.5 mm, 10-mm rebars can be imaged down up to a depth of 100 mm. Experimental results obtained by scanning steel bar specimens are presented. General performance characteristics and sensor limitations are also investigated.",

keywords = "DC magnetic field, Magnetic field imaging, Metal detection, Nondestructive evaluation (NDE)",

author = "Benitez, \{Diego S.\} and Sung Quek and Patrick Gaydecki and Vladimir Torres",

note = "Funding Information: Manuscript received August 29, 2007; revised April 1, 2008. First published June 6, 2008; current version published October 10, 2008. This work was supported by the Engineering and Physical Sciences Research Council, U.K. The authors are with the Sensing, Imaging, and Signal Processing Group, School of Electrical and Electronic Engineering, The University of Manchester, M60 1QD Manchester, U.K. Digital Object Identifier 10.1109/TIM.2008.924939",

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doi = "10.1109/TIM.2008.924939",

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T1 - A preliminary magnetoinductive sensor system for real-time imaging of steel reinforcing bars embedded within concrete

AU - Benitez, Diego S.

AU - Quek, Sung

AU - Gaydecki, Patrick

AU - Torres, Vladimir

N1 - Funding Information: Manuscript received August 29, 2007; revised April 1, 2008. First published June 6, 2008; current version published October 10, 2008. This work was supported by the Engineering and Physical Sciences Research Council, U.K. The authors are with the Sensing, Imaging, and Signal Processing Group, School of Electrical and Electronic Engineering, The University of Manchester, M60 1QD Manchester, U.K. Digital Object Identifier 10.1109/TIM.2008.924939

PY - 2008

Y1 - 2008

N2 - This paper studies the feasibility of using solid-state magnetoinductive probes for detecting and imaging steel reinforcing bars embedded within prestressed and reinforced concrete. Changes in the inductance of the sensor material are directly proportional to the strength of the measured magnetic field parallel to the sensor. Using a square coil of 300 mm × 300 mm × 2.5 mm, 10-mm rebars can be imaged down up to a depth of 100 mm. Experimental results obtained by scanning steel bar specimens are presented. General performance characteristics and sensor limitations are also investigated.

AB - This paper studies the feasibility of using solid-state magnetoinductive probes for detecting and imaging steel reinforcing bars embedded within prestressed and reinforced concrete. Changes in the inductance of the sensor material are directly proportional to the strength of the measured magnetic field parallel to the sensor. Using a square coil of 300 mm × 300 mm × 2.5 mm, 10-mm rebars can be imaged down up to a depth of 100 mm. Experimental results obtained by scanning steel bar specimens are presented. General performance characteristics and sensor limitations are also investigated.

KW - DC magnetic field

KW - Magnetic field imaging

KW - Metal detection

KW - Nondestructive evaluation (NDE)

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DO - 10.1109/TIM.2008.924939

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JF - IEEE Transactions on Instrumentation and Measurement

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ER -

A preliminary magnetoinductive sensor system for real-time imaging of steel reinforcing bars embedded within concrete

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Keywords

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