摘要
对两种含沙量(8．28千克／米^3和31．56千克／米^3)的模拟黄河水进行了在不同频率(3．2-20千赫)下的声衰减测量。结果表明：声衰减系数与频率之间基本上成线性关系，其斜率与含沙量有关。
Sound attenuation measurement has been conducted for two kinds of simulated water of the Yellow River, the sand contents of which are 8. 28 kg/m3 and 31.56kg/m3 respectively, at different frequencies in the range of 3. 2 to 20 kHz. The results show that the attenuation coefficient varies approximately linearly with frequency, and the slope of the lines depends upon the sand content.
关键词
衰减测量
同频
频率
衰减系数
斜率
千克
dynamic simulated suspension
the elimination of the interference from the tank-walls
sound attenuation measurement
