Title :
NIM frequency stability measurement system
Author :
Li, Rongcheng ; Liang, Xiaming ; Jin, Ziyuan ; Li, Liming ; Xia, Yongshi
Author_Institution :
Nat. Inst. of Metrol., Beijing, China
fDate :
4/1/1989 12:00:00 AM
Abstract :
Advances in the frequency stability measurement at National Institute of Metrology (NIM) are presented. The performance of the automated measurement system is described. The measuring uncertainty is discussed in detail. It is pointed out that the noise floor is better than -176 dBc/Hz for the frequency-domain system, and is nearly σ y(τ)≈5×10-14τ (τ=1 ms-0.1 s), 1.5×10-13(τ=1 s) in the time domain (BW⩾5/τ). Some measuring examples at 5 MHz are given
Keywords :
computerised instrumentation; frequency measurement; frequency stability; measurement standards; 5 MHz; NIM; National Institute of Metrology; automated measurement system; computerised instrumentation; frequency generators; frequency stability measurement; frequency-domain; noise floor; time domain; Density measurement; Energy measurement; Frequency domain analysis; Frequency measurement; Metrology; Noise measurement; Phase measurement; Power measurement; Stability; Time measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
