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Journal articles
On the Critical Impact of HF Power Drifts for Miniature Helium-Based NMR Gyroscopes
Abstract : Nuclear magnetic resonance (NMR) gyroscopes constitute a promising technology for miniaturizing navigation-class gyroscopes. We analyze here a configuration based on a mixture of helium-3 and helium-4. We show that frequency shifts due to the circulation of coherence between helium atoms in metastable and fundamental states have a large impact on the gyroscope drift. In order to reach navigation-class, the high-frequency source used to ignite the plasma is required to have a long-term power stability better than ppm.
https://hal-cea.archives-ouvertes.fr/cea-02202432
Contributor : Marianne Leriche Connect in order to contact the contributor
Submitted on : Wednesday, July 31, 2019 - 4:34:43 PM
Last modification on : Thursday, January 13, 2022 - 12:00:23 PM
Contributor : Marianne Leriche Connect in order to contact the contributor
Submitted on : Wednesday, July 31, 2019 - 4:34:43 PM
Last modification on : Thursday, January 13, 2022 - 12:00:23 PM