标准编号：ISO 1088:2007
中文名称：水文测量 流速面积法 流量测量中不确定度测定用数据的收集和处理
英文名称：Hydrometry — Velocity-area methods using current-meters — Collection and processing of data for determination of uncertainties in flow measurement
发布日期：2007-07
标准范围
This International Standard provides a standard basis for the collection and processing of data for thedetermination of the uncertainties in measurements of discharge in open channels by velocity-area methodsusing current-meters.To determine the discharge in open channels by the velocity-area method, components of the flow (velocity,depth and breadth) need to be measured. The component measurements are combined to compute the totaldischarge. The total uncertainty in the computed discharge is a combination of the uncertainties in themeasured components.Clause 4 of this International Standard deals with the types of errors and uncertainties involved. Clauses 5and 6 present a standard procedure to estimate the component uncertainties by the collection and processingof the necessary data.This International Standard is intended to be applied to velocity-area methods that involve measurement ofpoint velocities at a relatively small number of discrete depths and transverse positions in the flow crosssection,as described in ISO 748. This International Standard is not intended to be applied to measurementsmade by Acoustic Doppler Velocity Profilers (ADVP) or other instruments that produce essentially continuousvelocity profiles of the flow field.
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