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2016 ; 16
(2
): 234
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Detection and Inspection of Steel Bars in Reinforced Concrete Structures Using
Active Infrared Thermography with Microwave Excitation and Eddy Current Sensors
#MMPMID26891305
Szymanik B
; Frankowski PK
; Chady T
; John Chelliah CR
Sensors (Basel)
2016[Feb]; 16
(2
): 234
PMID26891305
show ga
The purpose of this paper is to present a multi-sensor approach to the detection
and inspection of steel bars in reinforced concrete structures. In connection
with our past experience related to non-destructive testing of different
materials, we propose using two potentially effective methods: active infrared
thermography with microwave excitation and the eddy current technique. In this
article active infrared thermography with microwave excitation is analyzed both
by numerical modeling and experiments. This method, based on thermal imaging, due
to its characteriatics should be considered as a preliminary method for the
assessment of relatively shallowly located steel bar reinforcements. The eddy
current technique, on the other hand, allows for more detailed evaluation and
detection of deeply located rebars. In this paper a series of measurement
results, together with the initial identification of certain features of steel
reinforcement bars will be presented.