摘要
概述了相关测量技术在国外的发展概况,扼要介绍了渡越时间相关理论成果、自适应闭环跟踪相关器的新发展、梯度相关方法的理论及其在流量测量中的应用。
Oversea’s development on correlation measurement techniques is described briefly.Theoretical achievements of transit time correlation,new developments of self-adap- tive closed loop tracking correlator and the principle as well application of correlation gradi- ent method are introduced.
关键词
渡越时间法
相关器
梯度相关
transit time method
correlator
two phase flow
correlation gradient
