Title :
High stability electromagnet power for Gouy magnetic balance
Author :
Wen Fan ; Ruifen Hou ; Zhigao Zhang ; Jian He ; Anli Lin
Author_Institution :
Nat. Inst. of Metrol., Beijing, China
Abstract :
For application in the magnetic field of Gouy magnetic balance, a dc-current source with ±200 V/50 A for magnetic system has been developed. Through designing a first-order negative feedback system with no static error, the stability of this customized constant current source at 42.86 A approached to 1.59×10-5/30 min which at present was satisfied with the requirement of the magnetic system.
Keywords :
balances; circuit feedback; constant current sources; electromagnets; magnetic field measurement; power measurement; stability; DC-constant current source; Gouy magnetic balance; current 42.86 A; current 50 A; first-order negative feedback system; high stability electromagnet power; magnetic field system; Circuit stability; Electromagnets; Magnetic fields; Magnetic susceptibility; Power system stability; Stability criteria; Thermal stability; Current source; Gouy balance; electromagnet; magnetic system; stability;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4799-5205-2
DOI :
10.1109/CPEM.2014.6898454
