Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8129919 | Ultrasonics | 2018 | 8 Pages |
Abstract
A pulse compression technique has been developed for the non-destructive testing of concrete samples. Scattering of signals from aggregate has historically been a problem in such measurements. Here, it is shown that a combination of piezocomposite transducers, pulse compression and post processing can lead to good images of a reinforcement bar at a cover depth of 55â¯mm. This has been achieved using a combination of wide bandwidth operation over the 150-450â¯kHz range, and processing based on measuring the cumulative energy scattered back to the receiver. Results are presented in the form of images of a 20â¯mm rebar embedded within a sample containing 10â¯mm aggregate.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Acoustics and Ultrasonics
Authors
S. Laureti, M. Ricci, M.N.I.B. Mohamed, L. Senni, L.A.J. Davis, D.A. Hutchins,