Abstract: An acoustic imaging system comprises a plurality of piezoelectric elements in a piezoelectic array. The array comprises a plurality of physically separate sub-arrays which are assembled together. It is supported on an interconnect layer. The elements are connected to the interconnect layer by a plurality of electrically conductive paths. The elements receive acoustic energy and convert it into electrical signals. The signals are transmitted along the plurality of electrically conductive paths and through the interconnect layer to an image processor which processes the signals to produce an image.