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This paper proposes a noise radiation sensor consisting of an array of independent piezoelectric patches connected to an adaptive linear combiner. The coefficients of the linear combiner are adapted in such a way that the mean-square error between the reconstructed volume displacement (or velocity) and either numerical or experimental data is minimized. A numerical study is conducted, to analyze the influence of the size of the piezoelectric array on the reconstructed volume velocity. a X Fig. 1 QWSIS sensor [4] 446 Transactions of tlie ASIUIE Downloaded From: http://vibrationacoustics.asmedigitalcollection.asme.org/ on 06/08/2015 Terms of Use: http://asme.org/terms

This paper proposes a noise radiation sensor consisting of an array of independent PVDF patches connected to an artificial neural net. The neural net is trained to reconstruct the volume displacement (or velocity) with either numerical or experimental data. A numerical study is conducted, to analyse the influence of the size of the PVDF array on the reconstructed volume velocity.