Affiliations: [a] Department of Physics, Faculty of Science and
Literature, Balikesir University, Balikesir, Turkey
Correspondence:
[*]
Corresponding author: Mustafa Göktepe, Department of
Physics, Faculty of Science and Literature, Balikesir University, 10145
Balikesir, Turkey. Tel.: +90 266 6121000, ext:1205; Fax: +90 266 6121215;
E-mail: [email protected]
Abstract: Inspection of rebars in concrete blocks is most important issue for
civil engineering applications, such as reinforcing the damaged buildings,
bridges, power stations and nuclear plants. This study is concerned the
research and development of a nondestructive rapid inspection technique for
rebars in concrete blocks. The rebar is magnetized near to saturation by using
a soft iron U-core and two magnetization coils. An inductive scanner is
designed and tested to generate dimensionally accurate images of steel
reinforcing components that embedded within reinforced and pre-stressed
concrete for condition assessment and structural integrity monitoring. The
system was locally magnetized by a U-core and then 500 turns search coil sensor
with an iron core was used to capture flux leakage from surface of the concrete
block at certain currents and magnetization frequencies.
Keywords: Magnetic flux leakage, mfl, magnetic field measurement, nondestructive testing, rebar detection
