Comparative measurement analysis of horizontal ADCP flow measuring system for Pingle Ⅲ Hydrological Station
The natural measuring river section of Pingle Ⅲ Hydrological Station had changed into river section affect-ed by reservoir backwater due to the construction of a downstream hydropower station,which led to the change of water level-flow relationship of measuring profile,and the conventional measurement was seriously affected.In or-der to ensure measuring and reporting security,improve the automation level of information acquisition and the mea-suring/reporting capability,synchronous comparative measurement and calibration analysis were conducted be-tween horizontal ADCP and navigational ADCP used for measuring cross-sectional average flow velocity at Pingle Ⅲ Hydrological Station.The results demonstrate the flow measuring accuracy of horizontal ADCP conforms to the specification,with the on-line measured data meeting the requirements of practical use.
horizontal ADCPflow velocity calibrationflow comparisonPingle Ⅲ Hydrological Station