Title :
Comparison of high-precision frequency-stability measurement systems
Author :
Sojdr, L. ; Cermak, J. ; Brida, G.
Author_Institution :
Inst. of Radio Eng. & Electron., Czech Acad. of Sci., Prague, Czech Republic
Abstract :
The performance of two commercial high-precision frequency-stability measurement systems, timing solutions 5110A time-interval analyzer and Quartz lock A7 frequency and phase comparator, has been compared with two laboratory dual-mixer time-difference (DMTD) systems developed at the institute of radio engineering and electronics (IREE), Prague, and istituto elettrotecnico nazionale "Galileo Ferraris" (IEN), Turin, respectively. Two BVA oscilloquartz 5 MHz oscillators with Allan deviation (ADEV) around 1×10-13 at averaging intervals 1 s to 30 s were used as test-signal sources. In terms of the best-measurement-capability (BMC), the compared systems have shown the background noise at 5 MHz of ADEV=4.2×10-14 at 1 s in IREE-DMTD, 4.4×10-14 in IEN-DMTD, 7.4×10-14 in A7, and 8.8×10-14 in 5110 A, respectively. The 5110 A analyzer behaved the best concerning the dependence on departures from the BMC conditions.
Keywords :
crystal oscillators; frequency stability; frequency standards; phase comparators; quartz; 5 MHz; Allan deviation; SiO2; best measurement capability; dual mixer time difference system; frequency comparator; high-precision frequency-stability measurement systems; institute of radio engineering and electronics; noise; oscillators; oscilloquartz; phase comparator; quartzlock; time interval analyzer; Fluctuations; Frequency measurement; Instruments; Laboratories; Oscillators; Phase measurement; Signal resolution; Stability; Testing; Timing;
Conference_Titel :
Frequency Control Symposium and PDA Exhibition Jointly with the 17th European Frequency and Time Forum, 2003. Proceedings of the 2003 IEEE International
Print_ISBN :
0-7803-7688-9
DOI :
10.1109/FREQ.2003.1275109
