摘要
基于声衰减原理进行水体含沙量测量的方法,需要测量声压的衰减值。本文针对悬浮液中的声衰减测量问题,作了探讨。提出了单一回波脉冲幅度法、比值法、面积比值法,并就其原理及检测中的技术问题作了论述。
Based on the principle of sound attenuation to measure the sediment concentration of suspensions, the attenuation value of sound pressure must be detected. For solving the problems of ultrasonic attenuation measurement in suspensions, three methods single echo pulse amplitude method, ratio method, area ratio method——were put forward. And their principle as well as their realization were also discussed.
关键词
声压
悬浮体
泥沙
测量
sound pressure
suspensions /ultrasonic attenuation measurement
