Rapid transmission coefficient reconstruction and material property estimation in plates

Rapid reconstruction of the transmission coefficient (TC) of a fluid-loaded plate across large frequency and phase-match angular ranges is achieved by performing a synthetic aperture scan with a pair of highly focused transducers in a transmission arrangement. The mode cutoffs are easily mapped out with the transducers at low incident angles. This method is successfully demonstrated on both isotropic and anisotropic plates to reconstruct and use the TC to estimate the elastic property of the plate materials. (Author)