Time-Domain Topological Energy Imaging Method of Concrete Cavity Defect by Lamb Wave

<div>Original and preprocessed scattering signals obtained at S5 position of the excitation source: (a) original scattering signal; (b) filtered scattering signal; (c) scattering signal after calibration.</div>

Shock and Vibration

fig11

Figure 11

Figure 11: Time-Domain Topological Energy Imaging Method of Concrete Cavity Defect by Lamb Wave 