A measurement system of cone meter differential pressure based on LabVIEW

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 LabVIEW 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.