Title :
A precision frequency standard comparison method and instrument
Author :
Wei Zhou ; Jianguo Yu ; Li, Jie ; Xuan, Zongqiang ; Hui Zhou
Author_Institution :
Dept. of Meas. & Instrum., Xidian Univ., Xi´´an, China
Abstract :
The linear phase comparison method is used widely in the long-term performance measurement of frequency standards. Combined with a high-speed voltage measuring method, high-resolution short-term stability measurement can also be accomplished based on the phase comparison device. In this case, sampling speed, voltage measuring accuracy and the measuring range will influence the comparison precision of the frequency standard. For higher resolution and convenient use, a “voltage self-correction” method based on linear phase comparison can be used. In the frequency standard comparison, 1×10 -13/τ measurement precision can be obtained and it has a good identical measuring result with other high-precision frequency standard comparators
Keywords :
frequency stability; frequency standards; phase comparators; phase measurement; high-resolution stability measurement; high-speed voltage measuring method; linear phase comparison method; measuring range; precision frequency standard comparison method; sampling speed; short-term stability measurement; voltage measuring accuracy; voltage self-correction method; Fluctuations; Frequency measurement; Instruments; Linearity; Measurement standards; Noise measurement; Oscillators; Phase measurement; Stability; Voltage measurement;
Conference_Titel :
Frequency Control Symposium and Exhibition, 2000. Proceedings of the 2000 IEEE/EIA International
Conference_Location :
Kansas City, MO
Print_ISBN :
0-7803-5838-4
DOI :
10.1109/FREQ.2000.887417
