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中文摘要：
原子自旋陀螺仪以其超高的理论精度已经成为各国争相研究的新一代陀螺仪,具有极大的开发价值和应用潜力.高精度原子自旋陀螺仪是以高质量原子自旋SERF状态的保持作为前提的,为了实现此目标就必须通过核自旋磁场自补偿以避免外界磁场变化对原子自旋定轴性的扰动作用.而国内现有原子自旋陀螺仪核自旋磁场自补偿方法大多依靠手动调节,精度不高且无法实时跟踪核自旋磁场自补偿点.因此,根据推导的原子自旋陀螺仪核自旋磁场自补偿动力学方程,进行了实时跟踪核自旋磁场自补偿点的仿真实验,在此基础上,基于美国NI公司的PXIe信号采集系统以及LabVIEW软件平台设计了自动跟踪磁场自补偿点的测试系统.最后结合试验平台进行了验证,结果表明所研制的原子自旋陀螺仪核自旋磁场自补偿系统可实时有效地跟踪核自旋磁场自补偿点,增强了原子自旋的SERF状态.
英文摘要：
With its ultra-high theoretical precision,atomic spin gyroscope （ASG） has become the new generation gyroscope that attracts the researchers in this field from all the cotmtries to study, and has great development value and application potential. High-precision ASG is based on a high-quality spin-exchange-relaxation-free （SERF） regime. In order to achieve this goal ,it is necessary to use nuclear spin magnetic field self-compensate to avoid the disturbance that comes from the external magnetic field to the atomic spin fixed axis. However, the nuclear spin magnetic field self-compensation methods adopted in domestic ASG still rely on manual adjustment,which shows a low precision and can not track the nuclear spin magnetic field self-compensation point in real time. Therefore ,in this study,the simulation experiment of real-time tracking the nuclear spin magnetic field self-compensation point was performed based on the deduced dynamic equation of nuclear spin magnetic field self-compensation of ASG; then based on the simulation result, a test system for automatic tracking magnetic field self-compensation point was designed using a PXIe signal acquisition system and the LabVIEW software platform from NI;and verification was performed on the experimental platform. The test results show that the developed nu- clear spin magnetic field self-compensation system of ASG can effectively track the nuclear spin magnetic field self-com- pensation point in real-time and improves the atomic nuclear spin SREF regime.
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