发明名称 |
GYROSCOPE SYSTEM MAGNETIC FIELD ERROR COMPENSATION |
摘要 |
One embodiment of the invention includes a nuclear magnetic resonance (NMR) gyroscope system. The system includes a gyro cell that is sealed to enclose an alkali metal vapor, a first gyromagnetic isotope, and a second gyromagnetic isotope. A magnetic field generator configured to generate a magnetic field that is provided through the gyro cell to cause the first and the second gyromagnetic isotopes to precess. A magnetic field error controller configured to measure an error associated with a magnitude of the magnetic field and to generate an error signal that is fed back to the magnetic field generator to maintain the magnetic field at a desired magnitude. The system further includes a mechanization processor configured to calculate a rotation angle about a sensitive axis of the NMR gyroscope system based on a measured precession angle of at least one of the first and second gyromagnetic isotopes and the error signal. |
申请公布号 |
EP2666037(A4) |
申请公布日期 |
2014.07.09 |
申请号 |
EP20120736627 |
申请日期 |
2012.01.16 |
申请人 |
NORTHROP GRUMMAN GUIDANCE AND ELECTRONICS COMPANY, INC. |
发明人 |
GRIFFITH, ROBERT C.;LARSEN, MICHAEL S.;BULATOWICZ, MICHAEL D. |
分类号 |
G01C19/62 |
主分类号 |
G01C19/62 |
代理机构 |
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代理人 |
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地址 |
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