Progress of study on acoustic vector sensor

Acoustic vector sensor is combined with traditional omni directional pressure sensor and dipole directional particle velocity sensor, which simultaneously and colocately measures orthogonal components of particle velocity as well as pressure at single point in space. It provides new idea for solving underwater acoustic problems using those obtained amplitude and phase information. Because of potential and important value of engineering application, underwater acoustic association pays many attentions to technology corresponding to acoustic vector sensor during last about decade. Based on investigation practice with many years, authors tray to review study developments in physical fundaments, sensor design and manufacture, corresponding engineering applications, and so on during 50 years.