Research Of Vector Hydrophone Element In Mix Array

Vector hydrophone is an underwater acoustic measurement sensors,the pressure and particle velocity could be measured vector hydrophone at the same location and the same time in the sonar system,and the of underwater sound could be describe in detail.The vector hydrophone of resonant-column type was widely used in underwater acoustic projects in virtue of its strong-points,such as the high sensitivity,the smooth response in the frequency band of interest,the fine symmetry in direction performance and the high resolution.In the thesis,the combination of vibration type vector hydrophone in order to content the actual engineering need and the requirements of mixing bursts of array element.This hydrophone designed to meet the requirements of low frequency,high sensitivity and small size,which the shape of the circular cylindrical capsule form that is capsule structure.The vector hydrophone was combined with pressure channels and vector channels.Research the cylindrical and spherical receivers and derived sonic receivers rigid cylindrical theory.Obtained by using ANSYS simulation and water quality point vibration amplitude ratio and phase frequency characteristics,provide a theoretical basis for the vector hydrophone sized.This designed hydrophone with the structure size of(37)44�65mm,in the frequency from 20 to 2000 Hz,the sensitivity of sound pressure channel is-193dB(0dB=1V/ ?Pa),and sensitivity of vector-channel is-180dB(1000Hz,0dB=1V/ ?Pa),in the operating frequency band cosine directional well,which meet the requirement of linear array.Mixed line array composition based on this.