标准表法气体流量标准装置标定软件设计

Software Design for Calibration of Gas Flow Standard Facility with Master Meter Method

文中介绍了一种应用于标准表法气体流量标准装置的标定软件系统。针对MFC、C#等编程软件设计复杂的问题,使用编程更为简单的组态软件作为开发环境,设计了一套标定软件,对标准表法气体流量标定过程中的数据采集、过程可视化显示、标定数据存储、标定报表生成以及标定历史数据查询等功能进行了实现。实际环境测试表明,该软件可以胜任监控流量标定工作,被校表示值误差在±0.2%之间,重复性在0.02%以下,与前次标定证书数据一致,符合0.2级准确度涡轮流量计国家标准;经过不确定度评定,系统的不确定度在0.4%以下,满足标准装置要求。

This study introduces a calibration software system applied to the gas flow standard facility with master meter method.In view of the complicated design of programming software such as MFC and C#,this study uses configuration software with simpler programming as the development environment,and designs a set of calibration software to realize the functions of data collection,process visualization display,calibration data storage,calibration report generation and calibration historical data query during the gas flow calibration process of the standard meter method.The actual environment test shows that the software can be competent to monitor the flow calibration.The error of the calibrated value is within±0.2%,and the repeatability is below 0.02%,which is consistent with the previous calibration certificate data and meets the 0.2-level accuracy turbine flowmeter national standard.After the uncertainty evaluation,the system uncertainty is below 0.4%,which meets the requirements of the standard facility.