标准摘要
[中文适用范围]： 本文件规定了测量水面（水位）仪器的功能要求，主要用于确定流量。 本文件由附件 A 补充，提供了有关当前可用的自动水位测量设备类型以及与其相关的测量不确定度的指南。 手动操作的测量装置在附录 B 中描述。 本文件适用于接触式和非接触式测量方法。 非接触式方法是物质不与水面直接接触，而是利用超声波或电磁波测量水位的高度。 [外文原描述]： This document specifies the functional requirements of instrumentation for measuring the level of water surface (stage), primarily for the purpose of determining flow rates. This document is supplemented by Annex A, which provides guidance on the types of automatic water level measurement devices currently available and the measurement uncertainty associated with them. The manually operated measuring devices are described in Annex B. This document is applicable to both contact and non-contact methods of measurement. The non-contact methods are not in direct material contact with the water surface but measure the height of the water level with ultrasonic or electromagnetic waves.
英文名称Hydrometry — Water level measuring devices