中文摘要：

介绍了一种TDR型液位测量系统,系统推广了TDR(时域脉冲反射)技术,通过监测反射信号的变化,实现液面水位的动态监测。并对采集信号的实时预处理采用了小波滤波和冗余采样率法,提高了系统的在线测量精度。介绍了测距原理、系统构成、采样数据预处理方法。软件界面采用Dephi7高级语言编程,并通过基于Dephi调用Matlab的方法对采集数据进行处理。实验结果表明:系统具有较高的测量精度,可靠性高。

英文摘要：

This paper introduced akind of TDRliquid level monitoring system.This systemdeveloped the theory of time domain reflectometry TDR technology.It realizedliquid level water level dynamic monitorbymonitoring the change of reflection signal;and implemented gathering signal real timeprocessing in usingthe wavelet filter and redundant sampling rate lawmethod,increased the system on-line measuring accuracy.The range measureprinciple,system constitution,the sampling data pretreatment methodwere introduced.The softw...