【摘要】 本文分析计算了圆柱形耦合腔中,水听器和发射器分置不同位置时,接收面上的压力和腔中的互易参量;导出腔中声压分布不均匀时灵敏度的计算公式,给出耦合腔校准准确度的理论估计;对于以前按常规公式(均匀场)计算的实验校准的数据,按不均匀分布的计算公式进行理论上的修正后,得到满意的结果;消除了计算的误差,并扩展了耦合腔校准的上限频率。更多还原

【Abstract】 The force on electroacoustic transducers in coupler and the reciprocity parameter of the coupler for the calibration of hydrophone have been deduced as the projector, receiver and reciprocity transducer are installed in different situation and when the field in the coupler is ununiform.Derivated the formulae for calibration of sensitivity of hydrophone in coupler calibration method when the pressure in liquid column of coupler was ununiform. The new parameter and formulae just proposed may carry out a theoretical estimate of the occuracy of reciprocity calibration in coupler. According to these formulae and parameter, we may modify the calculation of sensitivity by conventional count, and then the frequency range of the coupler calibration can be extended.更多还原