Title :
Split-type magnetic field generator with wide homogeneous region
Author :
Shirai, Terumitsu
Author_Institution :
Japan Electr. Meters Inspection Corp., Tokyo, Japan
fDate :
5/1/2001 12:00:00 AM
Abstract :
This paper discusses the homogeneity of a magnetic field generator for measurement of nuclear magnetic resonance (NMR). It shows that inhomogeneity is caused by an excess number of turns and a discrepancy from the design dimensions. A control circuit consisting of a pair of shim coils and a few Hall elements can improve the homogeneity. With it, a homogeneity of the magnetic field in the split coil of better than ±0.05% over 50 mm was obtained
Keywords :
magnetic field measurement; magnetometers; nuclear magnetic resonance; solenoids; Hall elements; homogeneous region; magnetic field generator; nuclear magnetic resonance; shim coils; split-type magnetic field generator; Coils; Magnetic field measurement; Magnetic fields; Magnetic resonance; Nonuniform electric fields; Nuclear magnetic resonance; Nuclear measurements; Nuclear power generation; Paramagnetic resonance; Solenoids;
Journal_Title :
Magnetics, IEEE Transactions on
