水堡水文站流量比测率定分析

Analysis of Flow Ratio Measurement Rate of Shuibao Hydrological Station

为了探明水堡水文站雷达波测流系统观测数据是否符合流量观测标准的要求。搜集人工测量数据和雷达波测流系统观测数据,绘制水位~流量关系曲线,并进行三项检验,用于搜集流量比测实测资料数据;运用随机不确定度计算公式以及系统误差分析研究雷达波测流系统的测量误差。结果表明:水位~流量关系曲线检验结果合理,满足规范要求;系统误差和随机不确定度计算结果均符合规范的要求,雷达波测流系统测定流量与人工测量流量比测结果良好。雷达波测流系统可在水堡站推广使用,实现了流量数据传输的自动化、数字化。水堡站测流槽投入使用,提高了低水流量测验精度,可为测流槽在河流的进一步推广提供技术支撑。

In order to find out whether the observation data of radar wave flow measurement system in Shuibao hydrological station meet the requirements of flow observation standard.Collect manual measurement data and radar wave flow measurement system observation data,draw the water level-flow relationship curve,and carry out three tests to collect the measured data of flow ratio measurement;the measurement error of radar wave current measurement system is studied by using random uncertainty calculation formula and system error analysis.The results show that the test results of the water level-discharge relationship curve are reasonable and meet the requirements of the code;the calculation results of system error and random uncertainty meet the requirements of the specification,and the flow rate measured by the radar wave flow measurement system is better than that measured by manual measurement.The radar wave flow measurement system can be popularized in Shuibao station,which realizes the automation and digitization of flow data transmission.The application of the flow measurement flume in the station has improved the accuracy of low water flow measurement,which can provide technical support for the further promotion of the flow measurement flume in the river.