Title :
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
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 uc(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;
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
DOI :
10.1109/ICMLC.2009.5212139
