摘要
悬浮物是水体中一种重要的声波反射物质,其特性影响声学多普勒流速剖面仪(ADCP)的计量检定和测试。文章依据声纳方程和声波衰减模型,通过经验和理论公式计算了水体中悬浮颗粒对声波的吸收系数和散射强度,分析得出了悬浮颗粒物组成成分、数量、粒径、密度、浓度等性质要素和ADCP的敏感关系,探讨研究了其对ADCP检测的影响。
Suspended sediment is a kind of sound reflection in water,its properties affects ADCP calibration and test.According to Sonar equation and sound attenuation model,sound absorption and volume backscatter index are calculatedby experiential and theoretical formular.The sensitive relationship between ADCP and suspended sediment properties including its component,the number of scatters,particle size,density and concentration is found out.Impact for ADCP calibration by suspended sediment characters is also given out.
出处
《气象水文海洋仪器》
2016年第1期16-19,共4页
Meteorological,Hydrological and Marine Instruments
关键词
悬浮物
声吸收
声散射
ADCP检测
suspended sediment
sound absorption
sound scattering
ADCP calibration
