Patent ID: 9618362
Date: 2017-04-11
CPC Classifications: G01C

Claim:
1. A nuclear magnetic resonance (NMR) gyroscope system comprising: a vapor cell comprising an alkali metal and a plurality of gyromagnetic isotopes; a pump laser configured to generate an optical pump beam configured to spin-polarize the alkali metal; a probe laser configured to generate an optical probe beam; a detection system configured to monitor the optical probe beam and to calculate a rotation of the NMR gyroscope system about a sensitive axis based on a modulation of the optical probe beam in response to precession of the plurality of gyromagnetic isotopes resulting from the spin-polarization of the alkali metal; and a calibration controller configured to modulate a characteristic of the optical pump beam to substantially mitigate bias errors associated with the gyromagnetic isotopes in the calculation of the rotation of the NMR gyroscope system about the sensitive axis.