Title :
DC-Current Source controlled by NMR
Author :
Weyand, Kurt ; Ketzler, Rainer ; Kitschke, Manfred ; Xu, Jiheng
Author_Institution :
Phys.-TechnischeBundesanstalt, Braunschweig
Abstract :
For the calibration of magnetic instruments a DC current source controlled by nuclear magnetic resonance (NMR) has been developed for currents in the range from 0.3 to 1 A. Depending on the absorption line-width of the NMR sample a resolution of less than 1 muA and a current instability of less than 1 ppm over 8 hours can be achieved
Keywords :
calibration; constant current sources; instruments; nuclear magnetic resonance; 0.3 to 1 A; 8 hours; DC-current source; absorption line-width; current instability; magnetic instruments; nuclear magnetic resonance; Absorption; Automatic control; Coils; Instruments; Magnetic materials; Magnetic resonance; Nuclear magnetic resonance; Resistors; Stability; Temperature;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2004 Conference on
Conference_Location :
London
Print_ISBN :
0-7803-8494-6
Electronic_ISBN :
0-7803-8494-6
DOI :
10.1109/CPEM.2004.305514
