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

Agustin Palacios-Laloy; Jaroslaw Rutkowski; Yann Troadec; Jean-Michel Léger

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

机译：HF功率漂移对基于氦的微型NMR陀螺仪的关键影响

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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.

机译：核磁共振（NMR）陀螺仪是使导航类陀螺仪小型化的有前途的技术。我们在这里分析基于氦3和氦4的混合物的构型。我们表明，由于亚稳态和基本状态下氦原子之间相干性循环而引起的频移对陀螺仪漂移有很大影响。为了达到导航级别，用于点燃等离子体的高频源必须具有优于ppm的长期功率稳定性。

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来源
《Sensors Journal, IEEE》 |2017年第3期|657-659|共3页
作者
Agustin Palacios-Laloy; Jaroslaw Rutkowski; Yann Troadec; Jean-Michel Léger;
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作者单位

CEA–LETI, Minatec, Grenoble, France;

CEA–LETI, Minatec, Grenoble, France;

CEA–LETI, Minatec, Grenoble, France;

CEA–LETI, Minatec, Grenoble, France;

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正文语种 eng
中图分类
关键词
Gyroscopes; Nuclear magnetic resonance; Optical sensors; Optical variables measurement; Helium; Magnetometers;

机译：陀螺仪;核磁共振;光学传感器;光学变量测量;氦气;磁力计;

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

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