Fabrication of a standard two-stage autotransformer at LNE

Author

Sindjui, R. ; Gournay, P. ; Thevenot, O. ; Thuillier, G.

Author_Institution

Lab. Nat. de Metrol. et d´Essais (LNE), Trappes, France

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

570

Lastpage

571

Abstract

The comparison of electrical quantities expressed in units of the international system of units and the same quantities generated from quantum effects is a direct way of determining physical constants. The determination of the quantum of resistance R_K from a calculable capacitor is part of this process. In such an experiment, various impedance bridges are used whose main part is a two-stage transformer. We describe in this paper a new two-stage autotransformer currently built and characterized at LNE.

Keywords

autotransformers; bridge circuits; capacitors; constants; electric resistance measurement; quantum well devices; units (measurement); LNE; capacitor; electrical quantity; impedance bridges; international system of units; physical constant determination; quantum effects; standard two-stage autotransformer fabrication; Capacitors; Magnetic cores; Magnetic noise; Magnetic shielding; Saturation magnetization; Uncertainty; Windings; Transformers; calibration of transformers; electrical metrology; impedance bridges; uncertainty;

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.2014.6898513

Filename

6898513