The Application of Magneto Inductive Sensors for Non-Destructive Testing of Steel Reinforcing Bars Embedded Within Pre-Stressed and Reinforced Concrete

Journal Article · Mon Mar 06 00:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2184672· OSTI ID:20798221

Benitez, D S; Quek, S; Gaydecki, P; Torres, V; Fernandes, B ^[1]

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1. Sensing, Imaging and Signal Processing Group (SISP), School of Electrical and Electronic Engineering. University of Manchester, PO Box 88, Manchester M60 1QD (United Kingdom)

This paper demonstrates the feasibility of using solid-state magneto-inductive probes for detecting and imaging of steel reinforcing bars embedded within pre-stressed 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. Experimental results obtained by scanning steel bars specimens are presented. General performance characteristics and sensor output limitations are investigated by using different orientations, sensing distance, excitation intensity, bar sizes and geometries.

• OSTI ID: 20798221
• Journal Information: AIP Conference Proceedings, Vol. 820, Issue 1; Conference: Conference on review of progress in quantitative nondestructive evaluation, Brunswick, ME (United States), 31 Jul - 5 Aug 2005; Other Information: DOI: 10.1063/1.2184672; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
INDUCTANCE
MAGNETIC FIELDS
NONDESTRUCTIVE TESTING
PERFORMANCE
REINFORCED CONCRETE
STEELS