Title :
A simple precision frequency standard comparator
Author :
Zhou, Wei ; Xuan, Zhongqiang
Author_Institution :
Dept. of Meas. & Instrum., Xidian Univ., Xi´´an, China
Abstract :
The authors describe a frequency standard comparator based on the characteristics of the greatest common factor frequency and the phase coincidence detection technique. By using a stable and high-frequency common oscillator, the comparator not only can compare frequency standards with a very high accuracy, but can also measure frequency precisely in a wide frequency range. Almost all the circuits in the comparator are digital integrated circuits. This comparator can also be used to compare the frequency standard with other frequencies precisely, if the frequency of the common oscillator is changed
Keywords :
comparators (circuits); frequency measurement; measurement standards; digital integrated circuits; frequency measurement; frequency standard comparator; greatest common factor frequency; high-frequency common oscillator; phase coincidence detection technique; Frequency measurement; Instruments; Integrated circuit measurements; Length measurement; Measurement standards; Oscillators; Phase detection; Phase frequency detector; Phase measurement; Time measurement;
Conference_Titel :
Frequency Control Symposium, 1993. 47th., Proceedings of the 1993 IEEE International
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-0905-7
DOI :
10.1109/FREQ.1993.367415