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本换能器由四对不同尺寸的PZT圆管组成.考虑了每个圆管的前两个振动模式和不同模式之间的互辐射效应,用模式叠加法和最小二乘法计算了换能器在水中的发射电压灵敏度、方向性图案和电导等特性. 实验表明:在16—120kHz间,水平方向的发射电压灵敏度起伏小于3dB,电声效率大于50％.电导值及发射电压灵敏度在16—80kHz内测量和计算符合.垂直指向性在25kHz内测量与计算符合.
The transducer consists of four pairs of PZT tubes of different sizes. Considering the first two vibration modes of each tube and the mutual radiation effects between the different modes, the transducer is calculated by mode superposition and least squares In the water of the launch voltage sensitivity, directional pattern and conductance and other characteristics of the experiment shows that: in the 16-120kHz between the horizontal direction of the emission voltage sensitivity fluctuations less than 3dB, the electroacoustic efficiency is greater than 50% conductivity and emission voltage sensitivity in the 16- 80kHz within the measurement and calculation of compliance. Vertical directivity measured and calculated within 25kHz.