This device can also apply to electric meter , water meter , and other intelligent counting control device as ic . if this device is improved at the base of formerly device , it will possess economical and applied characteristic 本装置同样适用于各类水表、电表等其它流量计量装置中，如在此基础上做进一步的改进，将更具有经济性和实用性。
There are several important issues to that attention should be paid in the design of test bed , such as the measurement of the temperature difference between the inlet and outlet of test section and the temperature of cooling water in the inlet and outlet of condensing tubes , filled volume of the steam boiler and its level control , the determination of the natural acting head of high temperature tank and design of the cooling water flow of measuring tank 试验台由高温工质自然循环子系统、冷却水机械循环子系统和计算机监测控制子系统构成，试验段进出口温差及冷凝管进出口温度的测试、蒸汽锅炉充注量及液位控制、高温水箱自然作用水头的设计、冷却水流量计量水箱的设计等是试验台设计中值得重视的问题。
The gas feed automation system , which includes field instruments , gas feed controller , wireless remote supervising system , and so on , will realize following functions : gas flow measurement , gas pressure and temperature measurement , gas flow control , gas pressure regulation , intermittent gas lift , wireless remote monitoring , and etc . this paper will discuss the following content in detail : first part is introduction 该自控系统包括现场变送仪表、气举配气控制器和无线远程监控等，主要完成天然气流量计量、气体压力温度检测、天然气流量控制、管道干压调节、间歇气举以及远程监控等功能。本文将会重点介绍以下内容：首先是概述部分，简要介绍了气举采油技术和气举配气系统的地位和现存问题，并介绍了配气自控系统的主要性能和优点。
It provides various kinds of function , such as flow chart , real time dynamic display , real time and historical trend chart , alarm , report , data logging , parameter setting etc . the function of flow calculation and compensation , data acquisition and storage , communication is also provided in flow calculator 计算机实现hmi人机接口和数据管理平台，具有工艺流程图、实时动态显示、实时和历史趋势图、报警、报表、数据记录、参数设定等功能。积算单元固化有流量计量专用软件和通讯软件，实现数据采集、计算、补偿、存储、通讯等功能。
The dissertation ' s main research content is to establish the metrology transfer standards on naturalgas flux . the task team aimed at the characters of the pvtt and mt methods for the naturalgas standards founded by native nation for the presents . for the purpose ofgaranting the accuracy of the values of quantities of the standards , reling on the measure process control methods , analyzed the present situation and the metrology capability of the naturalgas standards of measurement , analyzed and calculated the metrology methods and uncertainty of the transfer standard , analyzed the site experiments and the testing data 本文主要研究的内容是建立天然气流量计量传递标准,课题组针对目前国内建立的pvtt法、 mt法等天然气计量标准装置的特点,以保证天然气流量计量标准装置量值准确为目的;以测量过程控制方法为依据,对天然气流量计量标准装置的现状和计量性能进行了分析;对传递标准的计量方法和不确定度进行了分析和计算;对传递标准的硬件和软件进行了研究和设计;对传递标准进行了现场试验和数据分析;达到了利用传递标准对天然气计量标准装置进行现场比对和分析,进而保证计量标准装置值头准确的目的。
It came true to take advantage of transfer standard to compare and analyze the naturalgas standards of measurement on site . the dissertation used the transfer standards to take the site comparative experiments to the sonic nozzle standard measurement of the nation crude oil great flux measure station carried by vehicle and the standard measurement of the general pertrifaction plant . it evaluated and analyzed the measure capability of these two standards , thus to keep them fulfilling the rules of the verification and the regulations of relative criterions 本文通过使用传递标准,对国家原油大流量计量站车装音速喷嘴标准装置和大庆石化总厂计量站气体计量标准装置进行现场比对试验,对这两项天然气计量传递标准装置的计量性能进行了评价和分析,使国家站和大庆石化的天然气流量计量标准装置达到了检定规程和相关标准的规定要求。
Concluding from the evaluting result of the uncertainty of the transfer standard , the metrology way which make use of transfer standard to guarantee the accuracy of the values of the natrualgas metrology quantities is a very effective methodology . technologically it embodies the superiority of the traceability of the natrualgas flux metrology standards of mesurement . it has excellent compatibility and spacious application prospect 从传递标准的不确定度的评定结果可以看出,利用传递标准来保证天然气计量量值准确的计量方法,是一种非常有效的方法,在技术上体现出了现场工况条件下对天然气流量计量标准装置进行溯源的优越性,具有很好的适应性和广阔的应用前景。
The paper analyses the network form in the field , and the design and implementation of the software . for software design , the communication module , flux measuring module , and database module are presented , and some communication interface such as rs232 , rs485 , modbus is considered in the physical structure design 物理结构设计主要介绍了rs232 、 rs485 、 adam模块等的接口方式；软件设计主要介绍了程序中比较关键的通信模块和流量计量模块及数据库模块等，以及rs232 ， rs485 ， modbusplus等接口的通信软件设计。
