哈尔滨工程大学学报2013，Vol.34Issue(1)：7-14,8.DOI:10.3969/j.issn.1006-7043.201209046
基于矢量水听器的振速梯度水听器
The velocity gradient sensor based on the vector hydrophone
摘要
Abstract
According to the issue of vector hydrophone directivity sharpening, the velocity gradient hydrophone has been designed based on the vector hydrophone .which can measure the particle velocity and the velocity gradient at the same time. The measurement principle of the velocity gradient sensor and the error in the measurement process were discussed in great detail and as a result, a one-dimensional velocity gradient sensor was created. The testing was conducting in the standing wave calibrator for the purpose of measuring the directivity of the velocity channel and the velocity gradient channel. The -3dB beam-width of the directivity pattern of velocity channel is 90°. The velocity gradient channel displayed two types of directivity pattern: longitudinal quadrupole and lateral quadrupole. The -3dB beam-width of the longitudinal quadruple directivity pattern is about 65° and the -3dB beamwidth of the lateral quadrupole directivity pattern is about 45°. The theory and experiment confirmed that the directivity pattern of velocity gradient channel was sharper than the directivity pattern of velocity channel, and therefore, made the directivity of velocity gradient sensor sharper than that of the vector sensor.关键词
振速梯度水听器/指向性/校准装置/矢量水听器Key words
velocity gradient hydrophone/ vector hydrophone/ directivity/ standing wave calibrator分类
通用工业技术引用本文复制引用
杨德森,孙心毅,洪连进,周宏坤..基于矢量水听器的振速梯度水听器[J].哈尔滨工程大学学报,2013,34(1):7-14,8.基金项目
国家自然科学基金资助项目(11074057,11074058). （11074057,11074058）
