Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1997-02-04
1999-02-16
Arana, Louis
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324318, G01V 300
Patent
active
058724524
ABSTRACT:
A gradient magnetic field generator is provided for generating a spatially varying gradient magnetic field for use with a nuclear magnetic resonance spectroscopy probe having a rotatable sample container. The gradient field generator has a plurality of straight line conductive segments which lie parallel to one another and perpendicular to a plane within which lies a rotation axis about which the sample container rotates. The straight line conductive segments each conduct a current which generates a component of the overall gradient magnetic field. The conductive segments preferably lie in a cylindrical distribution about a stator within which the sample container is rotated. The appropriate currents for the conductive segments may be determined by finding a solution for the Jacobian which defines the magnetic field variations in the three-dimensional space of the stator. Finding an appropriate solution is simplified by presuming the cylindrical distribution of conductive segments and allowing restriction due to the size and shape of the stator, and the physical space between the stator and an inner surface of the probe housing.
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Cory David G.
Lewandowski Joel T.
Arana Louis
Bruker Instruments, Inc.
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