望亭(立交)水文站H-ADCP自动测流系统率定分析

Calibration Analysis of H-ADCP Automatic Flow Measurement System in Wangting (Interchange) Hydrological Station

通过对望亭(立交)水文站H-ADCP测量资料和人工实测流量资料的对比分析,结合H-ADCP仪器特性,采用指标流速法,对H-ADCP与缆道流速仪法测量的断面流速的关系进行率定,定线精度符合规范要求。在此基础上,对比测数据进行误差统计,给出流速公式,最终使仪器在线测量数据满足实用要求。

Through comparative analysis of H-ADCP measurement data and manually measured flow data in Wangting （Interchange） hydrological station, combining with the characteristics of H-ADCP, the index velocity method is used to calibrate the relation of cross-section velocities which are measured by H-ADCP and cableway current meter method. The steady line precision meets the specification requirements. On this basis, the measured data are compared for error statistics and velocity formula is given. The online measuring data meet the practical requirements.