Title :
Nuclear magnetic resonance-based current-voltage source
Author :
Kim, Cheol Gi ; Williams, E.R. ; Sasaki, H. ; Ye, S. ; Olsen, P.T. ; Tew, W.L.
Author_Institution :
Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
fDate :
4/1/1993 12:00:00 AM
Abstract :
A solenoid geometry for producing magnetic fields is introduced. A 1-A current has been stabilized using nuclear magnetic resonance techniques. A pair of tandem solenoids produces two uniform magnetic fields in opposite directions, and these fields are not affected by external magnetic shielding. The current and background field are controlled to within 0.1 ppm over an 8-h period
Keywords :
constant current sources; nuclear magnetic resonance; solenoids; 1 A; current-voltage source; magnetic fields; solenoid geometry; tandem solenoids; Electromagnets; Geometry; Laboratories; Magnetic field measurement; Magnetic materials; Magnetic resonance; Magnetic shielding; NIST; Nuclear magnetic resonance; Solenoids;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
