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US 2006/0139029 A1Published application
NMR gyroscope
AssigneeNorthrop Grumman Corporation
InventorsHenry Abbink, Edward Kanegsberg, Ralph Patterson
Life of this patent
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Abstract
An NMR gyroscope in one example comprises a support structure affixed within an enclosure, an NMR cell affixed to the support structure, a plurality of permanent magnets disposed about the NMR cell to produce a magnetic field within the cell, and a field coil disposed proximate the cell to produce a modulated magnetic field transverse to the magnetic field produced by the permanent magnets.
Claims35
An NMR gyro comprising:
- a support structure affixed within an enclosure;
- an NMR cell affixed to the support structure;
- a plurality of permanent magnets disposed about the NMR cell to produce a magnetic field within the cell;
- and
- a field coil disposed proximate the cell to produce a modulated magnetic field transverse to the magnetic field produced by the permanent magnets.
2 more elements
An NMR gyro comprising:
- a substantially cylindrical enclosure formed from HyMu 80 alloy;
- a ceramic support having four legs extending outward from a substantially circular central portion, the ceramic support affixed within the enclosure;
- an NMR cell suspending in vacuum and affixed to the ceramic support;
- four substantially cylindrical permanent magnets disposed approximately equidistant from the cell, the permanent magnets being disposed at the vertices of a square having the cell at its center;
- a single-turn magnetic field coil disposed to produce a modulated magnetic field transverse to a magnetic field produced by the permanent magnets;
- a cell heater that maintains cell temperature at about 100 degrees C.;
- and
- at least one pump VCSEL affixed to the ceramic support.
5 more elements
Dependencies are inferred from the claim text.