互相关多相流量测量的理论模型  

THEORETICAL MODELING OF CROSS CORRELATION FLOW MEASUREMENT SYSTEM

作　　者：曹理平 

机构地区：[1]南京动力高等专科学校自动化系

出　　处：《南京化工大学学报》1996年第A01期25-30,共6页Journal of Nanjing University of Chemical Technology(Natural Science Edition)

摘　　要：通过对互相关流量测量系统中随机流动噪声检测机理的理论分析和在超声波气液两相相关流量测量系统上的实验结果，建立了适合于多相流的互相关测量的新的理论模型———叠加模型。这个模型在理论上较透彻和全面地描述了相关流量测量系统的机理，并有效解释了实际相关曲线中出现的各种现象。The measurement mechanism of the random flow noise in the cross correlation measurement system for two component or multi component flow is discussed. According to this analysis, a new theoretical model for the cross correlation flow measurement system, called pixel integration model, is offered. Based on the model, a complex correlogram of the measured flow such as two peaks or skewness correlogram can be well explained, which is supported by experimental investigation in the ultrasonic cross-correlation flowmeter for air/water flow system.

关 键 词：相关流量计 数学模型 多相流测量 流量计 

分 类 号：TH814.02[机械工程—仪器科学与技术]