二维激光多普勒测速系统中的数据转换  

THE DATA TRANSFORMATION IN A 2D-LDV SYSTEM

作　　者：赵鸿[1] 柴路[1] 王浩[1] 刘书声[1] 

机构地区：[1]天津大学

出　　处：《气动实验与测量控制》1993年第4期93-97,共5页

基　　金：国家自然科学基金

摘　　要：通过使用丹迪公司提供的光机系统对多普勒信号进行采集和处理的原理进行分析,得出我们所要测量的信号到达时间、粒子渡越时间、多普勒频率和速度与所贮存的二进制代码之间的数量关系,并根据这些数量关系,编制了新的数据转换软件。这种软件操作方便,转换效率远高于原有的软件。It was found that the stored data of the Doppler signals collected by the Dantec Software are binary codes when the Doppler ve-locities were measured applying DISA55X 2D-LDV system.The binarycodes should be transformed to the data which are resultant and FOR-TRAN readable.But it was inconvenient using the Dantec data trans-forming software.The basis of collecting and dealing with the Dopplersignals of DISA 55X 2D-LDV system has been analysed.The quantityequations between the saved codes and the signals of arrival time,theparticle transit time,the Doppler frequencies and velocities are obtained.A new software for DATA transformation is programed according to thetransforming equations.This software is easy to operate and it is moreeffeeient than the old one.

关 键 词：二维LDV系统 数据转换 激光 

分 类 号：TN247[电子电信—物理电子学]