Ezperimental Research of Crosscorrelation-Based Virtual Dynamic Flowmeter
An innovated method for measuring dynamic flow is put forward, and a virtual dynamic flowmeter is established. Basing on the principle of pressure pulse containing the flow information, for the dynamic laminar flow, by means of collecting the pressure signals at two points at interval of L and processing them with crosscorrelation calculation, then the transit time is gained, consequently the average flow rate can be got. This calculation is prosecuted repeatedly according to a certain time step length, thus the average flow rates in each time slice can be acquired. If the step length is decreased to zero, the piecewise average flow rate is approximate to the instant dynamic flow. In order to calibrate the virtual dynamic flowmeter, the unloaded servo cylinder was used for the contrasting experiment. The accuracy and validity of this approach has been proved.
W L Jiang H M Sun H F Niu M Gao
Heavy Machinery Fluid Power Transmission and Control Key Laboratory,Yanshan University, 438 West Heb Beijing Polytechnic of Second Light Industry, 9 Liangshuihe One Street, Yizhuang Economics and Techn Heavy Machinery Fluid Power Transmission and Control Key Laboratory, Yanshan University, 438 West He Beijing Beizhong Steam Turbine Generator Co Ltd, Wujiacun Street, Shijingshan District 100040, Beiji
国际会议
第四届仪器科学与技术国际会议( 4th International Symposium on Instrumentation and Science and Tcchnology)
哈尔滨
英文
1248-1252
2006-08-08（万方平台首次上网日期，不代表论文的发表时间）