气体流量计在线检定系统的设计与应用  

Design and Application of Gas Flowmeter On-line Calibration System

作　　者：吕运朋[1] 井乐乐 边可可[1] 禹金标 

机构地区：[1]郑州大学物理工程学院,河南郑州450001

出　　处：《仪表技术与传感器》2014年第6期56-58,71,共4页Instrument Technique and Sensor

摘　　要：基于气体流量计离线送检成本较高以及超声波流量计高精确度、高稳定性的特点,根据时差法超声波流量计的工作原理,设计出一套可对气体流量计进行在线检定的标准装置。现场实验证明:系统可实现标准超声波流量计和被检流量计的流量数据采集,显示以及数据处理,并通过实验分析了影响检测精确度的各种因素,为气体流量计的计量检定和量值溯源提供了有效保障。Considering the high-cost of off-line calibration for gas flowmeter and the high accuracy and stability of ultrasonic flowmeter,a set of on-line calibration standard device for gas flowmeter was developed based on the working principle of time-difference ultrasonic flowmeter.Experiments proved that it can realize data acquisition,display and data processing of the standard ultrasonic flowmeter and checked flowmeter,and analyzed the factors which influence the accuracy of detection.It provides an effective protection for the measurement and quantity traceability of gas flowmeter.

关 键 词：气体流量计 超声波 在线检定 精确度 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]