Title :
The evaluation of NIST-7: a new era
Author :
Shirley, J.H. ; Lee, W.D. ; Drullinger, R.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
We have developed a set of evaluation tools whereby all of the known systematic effects are evaluated by means of leveraged experiments not involving, or limited by, precision frequency measurements. This both speeds the evaluation process and greatly reduces the "combined standard uncertainty, extending the operational life of thermal-beam technology.
Keywords :
atomic clocks; caesium; frequency measurement; measurement errors; measurement standards; Cs; NIST-7; caesium-beam frequency standards; combined standard uncertainty; evaluation tools; leveraged experiments; precision frequency measurements; primary standards; systematic effects; thermal-beam technology; Arithmetic; Atomic measurements; Clocks; Frequency measurement; Magnetic field measurement; Measurement standards; Microwave measurements; NIST; Noise measurement; Power measurement;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.546765
