Acoustic Vector Sensors that Achieve Affordable Array Directivity

As anti-submarine warfare (ASW) technologies expanded rapidly during the Cold War, towed array systems such as Surveillance Towed Array Sonar System (SURTASS) were deployed with outstanding success at detecting submarines. Later TB-29(A) and TB-34 along with the Multi-Function Towed Array (MFTA) have further increased detection capabilities. This proposal aims to reduce the cost of vector sensor integration into the towed arrays while concurrently improving array performance.  A significant cost of towed arrays is derived from touch time for assembly of the towed array from the multiple components.  To help reduce costs, this program aims to simplify assembly procedures and standardize the vector sensor components.  The program objective is to integrate the textured piezo ceramic elements with embedded electronics to provide a better solution for a vector sensor following the Open Architecture Telemetry standardization. A secondary objective is to develop the industry’s first commercially available textured piezo vector sensor. This new technology significantly improves sensitivity performance while simultaneously lowering receive noise. The textured piezo technology allows for retrofitted array improvements in legacy arrays and is directly applicable to transmit transducer applications.