标准摘要
[中文适用范围]: 本国际标准为数据收集和处理提供了标准基础,用于确定使用电流计通过速度面积法测量明渠流量的不确定度。 为了通过速度面积法确定明渠中的流量,需要测量水流的组成部分(速度、深度和宽度)。 组合各分量测量值来计算总放电量。 计算流量的总不确定度是测量分量的不确定度的组合。 本国际标准的第 4 条涉及所涉及的错误和不确定性的类型。 第 5 条和第 6 条提出了通过收集和处理必要数据来估计组件不确定性的标准程序。 本国际标准旨在应用于速度面积方法,该方法涉及在流动横截面中相对少量的离散深度和横向位置处测量点速度,如 ISO 748 中所述。 本国际标准不适用于声学多普勒速度剖面仪 (ADVP) 或其他产生基本上连续的流场速度剖面的仪器进行的测量。 [外文原描述]: ISO 1088:2007 provides a standard basis for the collection and processing of data for the determination of the uncertainties in measurements of discharge in open channels by velocity-area methods using 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 total discharge. The total uncertainty in the computed discharge is a combination of the uncertainties in the measured components. ISO 1088:2007 is intended to be applied to velocity-area methods that involve measurement of point velocities at a relatively small number of discrete depths and transverse positions in the flow cross-section, as described in ISO 748. It is not intended to be applied to measurements made by Acoustic Doppler Velocity Profilers (ADVP) or other instruments that produce essentially continuous velocity profiles of the flow field.
英文名称Hydrometry — Velocity-area methods using current-meters — Collection and processing of data for determination of uncertainties in flow measurement