PIEZOELECTRIC ARRAY SENSING OF VOLUME DISPLACEMENT: A HARDWARE DEMONSTRATION

This paper presents the results from a hardware demonstration of a noise radiation sensor for a baffled rectangular plate. The sensor consists of an array of independent piezoelectric patches connected to a linear combiner. The coefficients of the linear combiner are computed in order to reconstruct (in real time) the volume displacement (or velocity). The robustness of the volume displacement sensor with respect to the location of the disturbance source is investigated.