RATIOMETRIC NUCLEAR MAGNETIC RESONANCE (NMR) GYROSCOPE SYSTEM

摘要

An NMR gyroscope system includes a vapor cell that includes an alkali metal, a first gyromagnetic isotope, and a second gyromagnetic isotope, and a pump laser generates an optical pump beam. A magnetic field generator generates a magnetic field that is substantially aligned with a sensitive axis to cause the first and second gyromagnetic isotopes to counter-precess based on the optical pump beam and the alkali metal. A probe laser provides an optical probe beam through the vapor cell that exits the vapor cell as a detection beam, and a detection system monitors the detection beam and to determine a rotation of the NMR gyroscope system about a sensitive axis based on a modulation of the detection beam in response to precession of the first and second gyromagnetic isotopes and based on a predetermined constant ratio of precession of the first and second gyromagnetic isotopes.

主权项

1. A nuclear magnetic resonance (NMR) gyroscope system comprising:
a vapor cell comprising an alkali metal, a first gyromagnetic isotope, and a second gyromagnetic isotope; a pump laser configured to generate an optical pump beam; a magnetic field generator configured to generate a magnetic field that is substantially aligned with a sensitive axis to cause the first and second gyromagnetic isotopes to counter-precess based on the optical pump beam and the alkali metal; a probe laser configured to provide an optical probe beam through the vapor cell that exits the vapor cell as a detection beam; and a detection system configured to monitor the detection beam and to determine a rotation of the NMR gyroscope system about a sensitive axis based on a modulation of the detection beam in response to precession of the first and second gyromagnetic isotopes and based on a predetermined constant ratio of precession of the first and second gyromagnetic isotopes.