【作者】 李枫； 董峰； 张福生；

【Author】 LI Feng,DONG Feng,ZHANG Fusheng Tianjin Key Laboratory of Process Measurement and Control,School of Electrical Engineering and Automation, Tianjin University,Tianjin 300072,P.R.China

【机构】 天津市过程检测与控制重点实验室天津大学电气与自动化工程学院；

【摘要】 V型内锥式节流装置作为一种新型差压式流量传感器,被应用于两相流参数检测的研究.虚拟仪器作为一种结合计算机资源、仪器测控硬件、以及数据分析处理和图形用户界面软件的新兴的仪器仪表,在实际测试中已取得广泛的应用.研究中以V型内锥式节流装置产生的差压信号为测试对象,利用LabVIEW软件编程,实现实时信号采集、信号滤波、流出系数计算、流量计算、实时显示及相关的信号分析等功能,并进行模拟实验测试.实验结果表明,将虚拟仪器应用于V型内锥式流量测量系统,可方便地实现对实验过程的在线监测,提高了实验测量数据的可靠性和实验效率,对实验设计的优化起到了重要作用.更多还原

【Abstract】 V type cone throttling device as new differential pressure flow sensor have been used in two-phase flow measurement. As a new instrument,virtual instrument combines computer resources,equipment monitoring and control hardware,data analysis and processing software,and graphical user interface software,which has been widely used in the actual test.In this research,the differential pressure signal generated by the V type cone throttling device is tested,The functions such as the real-time data acquisition,signal filtering,discharge coefficient and flow rate calculation,the real-time analysis and display are realized by programming with Lab VIEW software,and finished the test by simulation experiment.Experimental results show that virtual instruments in V type cone flow measurement system can be convenient to monitored on-line experiment.It has played an important role to improving the reliability of experimental data and experimental efficiency,and optimizing the experimental design.更多还原