This work aims to improve the PEA calibration technique through defining a well-conditioned transfer matrix. To this end, a\nnumerical electroacoustic model that allows determining the output voltage of the piezoelectric sensor and the acoustic pressure is\ndeveloped with the software COMSOL�®.Theproposed method recovers the charge distribution within the sample using an iterative\ndeconvolutionmethod that uses the transfermatrix obtained with the newcalibration technique.The obtained results on theoretical\nand experimental signals show an improvement in the spatial resolution compared with the standard method usually used.
Loading....