涡街流量计测量柴油机脉动进气的误差分析

Error Analysis of Pulsating Flow Measurement by Vortex Flowmeter in Diesel Engines

介绍了用涡街流量计测量柴油机脉动进气时动态数据采集及处理方法,研究了脉动进气对流量系统误差和修正系数的影响。对在干扰状态下得到的数据以误差方法进行了分析及处理,得到了涡街流量计的流量修正系数与脉动系数之间的关系。

A method on sampling and processing the dynamic data from pulsating flow measurement in diesel engines was introduced. Based on a large number of experimental data, the effect of diesel pulsating flow on the measurement error and flow modification coefficient for vortex flowmeter were studied. Using the error method to analyze and process the experimental data, the relationship between flow modification coefficient and pulsating coefficient was obtained, thus a foundation for applying vortex flowmeter in diesel pulsating flow measurement and control was established.