Uncertainty analysis and evaluation of magnetic system of energy balance substituting for mass standard

Author

Li, Chen ; Han, Bing ; Li, Zheng-kun ; He, Qing

Author_Institution

Dept. of Precision Instrum. & Mechanology, Tsinghua Univ., Beijing, China

Volume

4

fYear

2009

fDate

12-15 July 2009

Firstpage

2195

Lastpage

2198

Abstract

This paper analyses the sources of uncertainty and evaluates the magnetic density in geometrical center of magnetic system, based on special structure of coil system of energy balance. It proved that the uncertainty u(I) of current existing in the coil of magnetic system would affect combined uncertainty of magnetic field u_c(H₀) to the greatest extent. Therefore the high-precision constant-current source was recommended to diminish uncertainty of magnetic field of Energy Balance.

Keywords

magnetic devices; magnetic fields; uncertain systems; coil system special structure; energy balance substitution; high-precision constant-current source; magnetic field uncertainty; magnetic system evaluation; magnetic system geometrical center; mass standard; uncertainty analysis; Instruments; Magnetic analysis; Magnetic field measurement; Magnetic fields; Magnetic flux; Magnetic materials; Permanent magnets; Superconducting coils; Superconducting magnets; Uncertainty; Energy Balance; Magnetic Density; Quantum Mass Standard; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Machine Learning and Cybernetics, 2009 International Conference on

Conference_Location

Baoding

Print_ISBN

978-1-4244-3702-3

Electronic_ISBN

978-1-4244-3703-0

Type

conf

DOI

10.1109/ICMLC.2009.5212139

Filename

5212139