DocumentCode :
236402
Title :
A measurement chain for the determination of RK using a calculable capacitor
Author :
Fletcher, Nick ; Goebel, R.
Author_Institution :
BIPM, Sevres, France
fYear :
2014
fDate :
24-29 Aug. 2014
Firstpage :
474
Lastpage :
475
Abstract :
The BIPM has an ongoing project to establish a Thompson Lampard calculable capacitor for use in the determination of the von Klitzing constant, RK. This paper describes key parts of the measurement chain used to provide the link between the dc quantum Hall effect and the calculable capacitor. The bridge used to calibrate a conventional 1 pF standard against a known 0.4 pF capacitance change is presented. The target relative uncertainty for the overall measurement is 1 part in 108.
Keywords :
capacitance measurement; capacitors; constants; measurement standards; measurement uncertainty; quantum Hall effect; BIPM; DC quantum Hall effect; RK determination; Thompson Lampard calculable capacitor; calibration; capacitance measurement standard; relative uncertainty; von Klitzing constant determination; Bridge circuits; Capacitance measurement; Capacitors; Quantum capacitance; Silicon; Standards; Capacitance; Coaxial Bridges; Fundamental Constants; Thompson Lampard;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location :
Rio de Janeiro
ISSN :
0589-1485
Print_ISBN :
978-1-4799-5205-2
Type :
conf
DOI :
10.1109/CPEM.2014.6898465
Filename :
6898465
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=236402
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