CAJ | 학술논문

我们建立了一套用于显示模拟海底反射声场的光学系统.实验水声模型是由水-玻璃粉-玻璃-铝组成的三层模拟海底结构，声源是一个管状换能器，其轴线平行于分界面。实验用这套系统记录了从水下三个界面反射的六组波的声场图像，并且分辨出了它们各自的传播路径.从声场图像也可以得出水-玻璃粉界面、玻璃粉-玻璃界面的面波声速，玻璃粉和玻璃中的体波声速以及它们的厚度，结果与预先测出的参数符合.
아문건립료일투용우현시모의해저반사성장적광학계통.실험수성모형시유수-파리분-파 리-려조성적삼층모의해저결구，성원시일개관상환능기，기축선평행우분계면。실험용저투계통기 록료종수하삼개계면반사적륙조파적성장도상，병차분변출료타문각자적전파로경.종성장도상야 가이득출수-파리분계면、파리분-파리계면적면파성속，파리분화파리중적체파성속이급타문적 후도，결과여예선측출적삼수부합.
An optical system for the visualization of the acoustic waves reflected from the seabed model was constructed. The laboratory seabed model consists of water glass bead-glass-aluminum. The acoustic source is a cylindrical transducer with its axis paralleled to the interfaces. The six groups of waves in water, which are reflected from the three interfaces under the water, were recorded by Shadowgraph mode and their travelling paths were distinguished. The velocities of the surface waves on the water glass bead interface and the glass bead-glass interface, the thickness and the velocities of the bulk waves in glass bead and glass were derived. These parameters are agrees to our previous measurements.