可刚性固定组合矢量水听器结构设计与响应分析

Structural Design and Receiving Response Research of A Rigid Fixed Combined Vector Hydrophone

设计一种可刚性固定的组合矢量水听器,叙述其基本设计方法;建立中心固定式振速水听器的等效电路模型,详细推导其接收响应表达式,并与传统框架悬挂式振速水听器进行对比分析。结果表明,在设定的工作频带内,该组合矢量水听器可实现声场中声压与质点振速信息的测量;其振速输出响应与入射声波频率无关,主要受柔性材料阻尼、压电敏感材料物理参数影响,响应特征较传统框架悬挂式振速水听器有本质差别。

A combined vector hydrophone is designed,which can be fixed by the equivalent circuit method,the basic design method is described,the equivalent circuit model of the center fixed velocity hydrophone is built.And the response expression of the vibration velocity hydrophone is derived.Comparative analysis is carried out with the traditional frame suspension velocity hydrophone.The results show that in the setting of the band,the combination of the vector hydrophone can measure the sound pressure and particle velocity information,the velocity output response has nothing to do with the incident wave frequency,mainly by the flexible material damping and the influence of piezoelectric sensitive material physical parameters,the response characteristics compared with the traditional frame suspension velocity hydrophone has essential difference.