Title :
Precision time-domain measurement system
Author :
Friedhelm, Caspers
Author_Institution :
Ruhr-Universitÿt Bochum, Institut fÿr Hoch- und Höchstfrequenztechnik, Bochum, West Germany
Abstract :
For an accurate comparison of two pulse signals on one channel of a sampling system, an alternating pretrigger shift is used. Simultaneously, a quartz-stable c.w. sine gives a precise time reference. A programmable data-acquisition system performs control and output operations. After averaging, the usable dynamic range is 70 dB with noise and drifts below 0.2 mVeff
Keywords :
time-domain reflectometry; 70 dB dynamic range; alternating pretrigger shift; averaging; drift <0.2 mV; noise <0.2 mV; precise time reference; precision time domain measurement system; quartz crystal stabilised CW sinewave; sampling system; two pulse signals;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800024
