共找到 506 条与 流量与物位仪表 相关的标准,共 34 页
This document specifies the functional requirements and characteristics of the different types of suspended-sediment samplers used for collecting water-sediment mixtures from streams, rivers, lakes and reservoirs. This document does not include equipment for collecting samples in closed conduits and wastewater discharges. NOTE The units of measurement used in this document are SI units.
Hydrometry - Functional requirements and characteristics of suspended-sediment samplers
This document gives guidelines for the use of boat-mounted acoustic Doppler current profilers (ADCPs) for determining flow in open channels. It describes a number of methods of deploying ADCPs to determine flow. Although, in some cases, these measurements are intended to determine the stagedischarge relationship of a gauging station, this document deals only with single determination of discharge. ADCPs can be used to measure a variety of parameters, such as current or stream flow, water velocity fields, and channel bathymetry. As a potential application, an idea of bedload discharge can be obtained applying the bottom track velocity, while suspended sediment flow can be obtained applying the acoustic backscatter and the sonar equation. This document is generic in form and contains no operational details specific to particular ADCP makes and models.
Hydrometry - Acoustic Doppler profiler - Method and application for measurement of flow in open channels from a moving boat
Building water meter configuration specification
Measurement of multiphase fluid flow
本标准规定了基于窄带物联网(NB-IoT)技术的燃气智能抄表系统(以下简称系统)的术语和定义、缩略语、系统和原理、技术要求、试验方法、检验规则等。 本标准适用于采用NB-IoT技术进行通信的民用燃气智能抄表系统的设计、建设及检验。 注:民用含居民用户和一般商业用户。
Gas smart reading meter system based on NB-IoT technology
Calculation Method of Refund and Supplement Water Quantity for Mistakes in Water Quantity Measurement
Calculation Method of Refund and Compensation Gas Quantity for Gas Metering Error
Ultrasonic domestic gas meters
Thermal mass gas meter
Three-way valve for high pressure heater
Diaphragm gas meter valve cover and valve seat
Diaphragm gas meter valve cover and valve seat
Infrared scanning thermometer
本标准适用于磁浮子液位计、浮球液位计、电接点液位计、电容物位计、电动浮筒液位计、玻璃管液位计、脉冲雷达物位计、高能声波物位计、导波雷达物位计、超声波物位计、外贴超声波液位计和智能伺服液位计
General technical requirements for liquid level gauges
This document specifies methods for determining stage-fall-discharge relationships for a stream reach where variable backwater occurs either intermittently or continuously. Two gauging stations, a base reference gauge and an auxiliary gauge are required for gauge height measurements. A number of discharge measurements are required in order to calibrate the rating to the accuracy required by this document. The preparation of rating curves is not described in detail in this document. NOTE For a more detailed description of preparing rating curves, see the methods described in ISO 1100-2.
Hydrometry - Stage-fall-discharge relationships
Hydrometry. Open channel flow measurement using thin-plate weirs
Microwave (radar) level meter
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号