水平ADCP在戛旧_((二))站的比测分析

Comparison and analysis of horizontal ADCP in Old(2) Station

戛旧_((二))站作为水利部948计划声学多普勒流速剖面仪器比测的一个试点,承担S5型水平式ADCP实时在线数据比测任务。用该ADCP与缆道流速仪、M9型走航式ADCP、漫湾电厂出库流速进行比测分析,并研究泥沙、水温对该ADCP所测流速的影响。通过比测率定出断面平均流速与该ADCP指标流速的关系,得出用该仪器测流可满足水文测验规范要求、泥沙对该仪器测流影响不大、测量时水温低比水温高效果好的结论,该ADCP可在水文测验中推广使用。

The Old(2)station is a pilot test of the acoustic Doppler velocity profile instrument of the948plan of the Ministry of Water Resources,and undertakes the task of horizontal ADCP real-time online data comparison.The ADCP is compared and analyzed with the cableway flow meter,M9ADCP,and data measured in Manwan Power Plant.And the influence of sediment and water temperature on the flow rate measured by the ADCP is studied.By determining the relationship between the average velocity of the cross section and the velocity of the ADCP index,it is concluded that the flow measurement using this instrument can meet the requirements of the Hydrographic test specifications,the sediment has little effect on the flow measurement of the instrument,and in lower water temperature the ADCP can get better measurement.The ADCP can be widely used in hydrological tests.