Acoustic characterization of the seabed with a single-element time-reversal mirror

Godin, Oleg A.; Uzhansky, Ernst M.; Tan, Tsuwei; Katsnelson, Boris G.; Tan, Dexter Y.; Renucci, Thomas; Voyer, Antoine; McMullin, Ryan M.

doi:10.1016/j.apacoust.2023.109442

Applied Acoustics

2023

DOI: 10.1016/j.apacoust.2023.109442

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Acoustic characterization of the seabed with a single-element time-reversal mirror

Oleg A. Godin,

Ernst M. Uzhansky,

Tsuwei Tan

et al.

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2024

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Time Reverse Modeling of Acoustic Waves for Enhanced Mapping of Cracking Sound Events in Textile Reinforced Concrete

Kocur,

Markert

2024

J Nondestruct Eval

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Time reverse modeling (TRM) is successfully applied to acoustic signals from a circular microphone array, for mapping of sudden cracking sound events. Numerical feasibility using synthetic acoustic sources followed by an experimental study with steel pendulum impacts on a steel plate is carried out. The mapping results from the numerical and experimental data are compared and verified using a delay-and-sum beamforming technique. Based on the feasibility and experimental study, a mapping error is estimated. In the main experimental study, cracking sound events obtained during a tensile test on a textile-reinforced concrete specimen are mapped with the TRM. The enhanced capability of the TRM to map simultaneously occurring cracking sound events along crack paths is demonstrated.

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Time Reverse Modeling of Acoustic Waves for Enhanced Mapping of Cracking Sound Events in Textile Reinforced Concrete

Kocur,

Markert

2024

J Nondestruct Eval

View full text Add to dashboard Cite

show abstract

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Acoustic characterization of the seabed with a single-element time-reversal mirror

Cited by 1 publication

References 33 publications

Time Reverse Modeling of Acoustic Waves for Enhanced Mapping of Cracking Sound Events in Textile Reinforced Concrete

Time Reverse Modeling of Acoustic Waves for Enhanced Mapping of Cracking Sound Events in Textile Reinforced Concrete

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