核磁共振陀螺多层磁屏蔽系统优化设计

发布时间：2018-07-12 09:25

  本文选题：核磁共振陀螺仪 + 多层磁屏蔽　； 参考：《中国惯性技术学报》2016年03期

【摘要】：核磁共振陀螺是目前世界上体积最小的导航级陀螺。由于核磁共振陀螺通过探测原子核的宏观磁化在静磁场中的进动频率来测量载体的角速度,为获得高精度与大动态范围,需要确保静磁场的稳定性,防止外部磁场的干扰,所以必须对核磁共振陀螺进行磁屏蔽。从核磁共振陀螺磁屏蔽原理出发,通过数学计算和计算机仿真,分析和研究了多层磁屏蔽罩结构参数对磁屏蔽系数的影响,并对核磁共振陀螺磁屏罩进行了优化设计。设计的多层磁屏蔽罩磁屏蔽系数达到了106,满足核磁共振陀螺的使用需求。该工作为核磁共振陀螺仪的整体设计和制造提供了一定的理论依据和参考价值。
[Abstract]:Nuclear magnetic resonance gyroscope (NMR) is the smallest navigation gyroscope in the world. Since the magnetic resonance gyroscope measures the angular velocity of the carrier by detecting the precession frequency of the macroscopic magnetization of the nucleus in the static magnetic field, in order to obtain high precision and large dynamic range, it is necessary to ensure the stability of the static magnetic field and prevent the interference of the external magnetic field. Therefore, magnetic shielding must be carried out on the NMR gyroscope. Based on the principle of magnetic shielding of nuclear magnetic resonance gyroscope, the influence of the structure parameters of multi-layer magnetic shield on the magnetic shielding coefficient is analyzed and studied by mathematical calculation and computer simulation, and the optimization design of magnetic shield of nuclear magnetic resonance gyroscope is carried out. The magnetic shielding coefficient of the multilayer magnetic shield is up to 106, which can meet the needs of NMR gyroscope. This work provides a certain theoretical basis and reference value for the overall design and manufacture of NMR gyroscope.
【作者单位】： 西安飞行自动控制研究所;
【基金】：总装十二五航空支撑资助项目(61901060301)
【分类号】：V241.5
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本文编号：2116700