Title :
Uncertainty budget for the NIM QHR standard system
Author :
He, Q. ; Zhang, Z. ; Li, Z. ; Zhao, J.
Author_Institution :
Nat. Inst. of Metrol., Beijing
Abstract :
In this paper, the uncertainty of the QHR standard system at NIM is estimated and the combined standard uncertainty is given out. A new method to calibrate CCC ratio unit working in-situ is introduced.
Keywords :
electric resistance measurement; measurement standards; measurement uncertainty; quantum Hall effect; cryogenics current comparator; quantum Hall resistance standard system; standard uncertainty; Bridge circuits; Calibration; Capacitors; Detectors; Insulation; Metrology; Personal communication networks; Resistors; Uncertainty; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location :
Broomfield, CO
Print_ISBN :
978-1-4244-2399-6
Electronic_ISBN :
978-1-4244-2400-9
DOI :
10.1109/CPEM.2008.4574702
