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Journal Articles IEEE Sensors Journal Year : 2017

On the Critical Impact of HF Power Drifts for Miniature Helium-Based NMR Gyroscopes

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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.
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cea-02202432 , version 1 (31-07-2019)

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Agustin Palacios-Laloy, Jaroslaw Rutkowski, Yann Troadec, Jean-Michel Léger. On the Critical Impact of HF Power Drifts for Miniature Helium-Based NMR Gyroscopes. IEEE Sensors Journal, 2017, 17 (3), pp.657-659. ⟨10.1109/JSEN.2016.2632179⟩. ⟨cea-02202432⟩
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