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Impact-Echo Dataset "Radarplatte"

Harvard Dataverse (Africa Rice Center, Bioversity International, CCAFS, CIAT, IFPRI, IRRI and WorldFish)

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Title Impact-Echo Dataset "Radarplatte"
 
Identifier https://doi.org/10.7910/DVN/UNOH2U
 
Creator Aßmann, Norman
Bühling, Benjamin
 
Publisher Harvard Dataverse
 
Description This dataset contains raw data resulting from Impact-Echo measurements at the reference conrete block "Radarplatte", located at BAM (German Federal Institute for Materials Research and Testing). This specimen has been described in detail by Niederleithinger et al. [1], who applied muon tomography, ultrasonic echo measurements, radar and X-ray laminography to visualize its internal structure.




The Impact-Echo method is based on the excitation of the zero-group-velocity frequency of the first symmetric Lamb mode of a plate-like structure, in order to assess its thickness. Numerous publication elaborate on Impact-Echo theory, examples are [2-4].




The measurements have been conducted using a setup that contains only commercially available components. The setup consists of an Olson CTG-2 concrete thickness gauge (Olsen Instruments, USA) for actuation and sensing and an 8-bit NI USB-5132 digital storage oscilloscope (National Instruments, USA) combined with the Echolyst software (Schweizerischer Verein für technische Inspektionen (SVTI), Switzerland) for data acquisition.




Measurements were conducted using a grid of 23x23 points with a spacing of 50 mm. At each point 8192 samples were recorded at a sampling rate of 1 MS/s.




The dataset contains the (X,Y) location in mm of the individual measurement points as well as the raw measurement data at those points.




The data is provided in the formats *.mir/*.mhdr (Echolyst), *.npy (Python) and *.mat (Matlab) and *.csv to ease the import in various post-processing tools.






References:


[1] Niederleithinger, E., Gardner, S., Kind, T. et al. "Muon Tomography of the Interior of a Reinforced Concrete Block: First Experimental Proof of Concept." Journal of Nondestructive Evaluation 40, 65 (2021). doi: https://doi.org/10.1007/s10921-021-00797-3


[2] Gibson, A. and S. Popovics John (2005). "Lamb Wave Basis for Impact-Echo Method Analysis." Journal of Engineering Mechanics 131(4): 438-443. doi: https://doi.org/10.1061/(ASCE)0733-9399(2005)131:4(438)


[3] Schubert, F. and B. Köhler (2008). "Ten Lectures on Impact-Echo." Journal of Nondestructive Evaluation 27(1): 5-21. doi: https://doi.org/10.1007/s10921-008-0036-2


[4] Abraham, O. and J. S. Popovics (2010). "Impact–echo techniques for evaluation of concrete structures." in Non-Destructive Evaluation of Reinforced Concrete Structures. Eds.: C. Maierhofer, H.-W. Reinhardt and G. Dobmann, Woodhead Publishing. 2: 466-489. doi: https://doi.org/10.1533/9781845699604.2.466
 
Subject Engineering
Non-destructive testing
Impact-Echo
S1-ZGV mode
Concrete
 
Date 2021-12-01
 
Contributor Bühling, Benjamin
 
Type Vibration Sensor Data