Publications by authors named "Alberto Octavio"
Damage characterization using guided-wave linear arrays and image compounding techniques.
IEEE Trans Ultrason Ferroelectr Freq Control
September 2010
Article Synopsis
- A high-resolution imaging method for inspecting isotropic plate-like structures using Lamb waves and linear arrays is proposed, addressing limitations such as low dynamic range due to lobe patterns.
- By employing a full matrix array and a synthetic aperture technique with various apodization coefficients, the method enhances image quality through image compounding and a new algorithm that leverages apodization and signal polarity diversities.
- Despite challenges like a dead zone and wave reverberations affecting image quality, introducing spatial diversity with an additional array significantly improves defect detection, resulting in high-resolution images in experimental tests on aluminum plates.