声学时差法在感潮河段上的应用及分析  

Application and Analysis of Acoustic Time-of-Flight Method in Tidal River Sections

作　　者：钟晨 钱敏 黄士稳 Zhong Chen;Qian Min;Huang Shiwen(Zhejiang Tianyu Information Technology Co.,Ltd.,Hangzhou 310000,Zhejiang;Zhejiang Hydrological Management Center,Hangzhou 310000,Zhejiang)

机构地区：[1]浙江天禹信息科技有限公司,浙江杭州310000 [2]浙江省水文管理中心,浙江杭州310000

出　　处：《陕西水利》2025年第2期26-28,共3页Shaanxi Water Resources

基　　金：浙江省水利厅科技计划项目(RC2204)。

摘　　要：感潮河段的水文在线流量监测一直是水文监测工作中的难点,对水位测验资料要求较高。声学全断面时差法测流系统通过测量水平方向全断面的层流速,与断面平均流速建立关系,从而得到准确的断面流量,该方式可应用于流态紊乱、有正逆流的感潮河段。系统在广陈站的应用满足二类精度水文站的要求,满足水文测验资料要求,测量流量可以作为实际流量使用,研究结论可为感潮河段的水文在线监测提供解决思路和实践指导。Online flow monitoring in tidal river sections has always been a challenge in hydrological monitoring,requiring high standards for water level measurement data.The acoustic full-cross-section time-of-flight flow measurement system addresses this issue by measuring the laminar velocity across the entire horizontal cross-section and correlating it with the average cross-sectional velocity to obtain accurate cross-sectional flow rates.This method is suitable for turbulent flow conditions and bidirectional flows(both positive and negative)characteristic of tidal river sections.The application of this system at the Guangchen station meets the accuracy requirements of Class II hydrological stations,satisfies the needs for hydrological measurement data,and the measured flow can be used as actual flow data.The research conclusions provide a solution approach and practical guidance for online hydrological monitoring in tidal river sections.

关 键 词：时差法 感潮河段 流量测量 在线监测 

分 类 号：P3322[天文地球—水文科学]