Design of Vector Hydrophones for Suspended Anti-torpedo Depth Charge

A cylindrical vector hydrophone for suspended anti-torpedo depth charge was designed to achieve the inter-ception of an incoming torpedo. The measurement principle of a co-oscillating cylindrical vector hydrophone was derived based on the receiving and responding acoustic wave models of a rigid cylindrical swing receiver. The interrelationship among the parameters of a co-oscillating cylindrical vector hydrophone which uses piezoelectric accelerometers was analyzed by simulation. And the vector hydrophone′s technical performance parameters were selected and designed to meet usage requirements of the suspended anti-torpedo depth charge. Simulation results show that in the allowances of sensitivity and phase difference, less strict geometrical dimension requirement of the acoustic rigid moving cylinder may facilitate the design of the co-oscillating cylindrical vector hydrophone of suspended anti-torpedo depth charge.