Time Domain Reflectometer utilizing a low frequency clock generator and a low speed ADC

摘要

time area having the same effect as using a high-speed clock generator at a low cost by using a low-speed clock generator a reflection measuring device, and signal amplifying means for amplifying a pulse signal generated from the clock generating means and the pulse generating means and said pulse generating means, the reflection signal from the delivery of the amplified pulse signal to the measuring line and the measuring line and signal transmitting and receiving means for receiving, receiving the amplified pulse signal and the reflection signal from the signal transmitting and receiving means, and analog-to-digital conversion means for converting the digital signal, the analog-to-digital conversion means is a pulse signal generated by the pulse generator but only one of the sample data so as to extract the current sample data is analyzed to extract the signal generating means for generating a signal for controlling to extract the analysis after one cycle of the pulse signal delayed by a predetermined time from a point of time immediately before the extraction for each cycle of and, wherein the analog-to-digital sample by combining the plurality of data extracted from the converting means and one of the amplified pulse signal and a signal forming means for forming a reflected signal, and display means for displaying the signals generated by the signal forming means, the pulse signal analysis and generation of the signal, and the display time domain reflectometry apparatus comprising control means for controlling the like.