基于LabVIEW的Xe核自旋横向弛豫时间自动测试系统

核磁共振陀螺仪是基于量子调控技术的前沿研究，具有高精度、小体积、低功耗等显著优点，是未来高精度微小型陀螺的主要发展方向之一。原子气室内Xe核自旋的横向弛豫时间是衡量原子气室性能的一个重要参数，直接影响陀螺的角随机游走，准确快速地测量横向弛豫时间有利于研制性能更优的原子气室。根据推导的核自旋横向弛豫时间测量原理，基于LabVIEW软件平台设计了一种气室核自旋横向弛豫时间的自动化测试系统，实现了温度控制、氙共振频率找寻、磁场控制及数据处理存储功能。实际应用表明，采用自动化测试系统工作稳定可靠、测量效率高、测试精度高、人机交互性好，为检验核磁共振陀螺仪原子气室的性能提供了有效测试手段。

Transverse relaxation time automatic test system of Xe nucleon based on LabVIEW

With the rapid progress of frontier research such as quantum control technology, nuclear-magnetic-resonance gyroscope(NMRG), which features significant advantages of high precision, small size, low power consumption and so on, has become one of the main development directions of high precision micro-miniature gyroscope in the future. Transverse relaxation time of Xe nucleon contained in the vapor cell is an important parameter to measure the performance of the vapor cell, which directly affects the random gyro angle migration. Accurate and rapid measurement of transverse relaxation time is conducive to the development of vapor cell with better performance. Based on the deduced principle of transverse relaxation time measurement of nucleon and LabVIEW software platform, an automatic measurement system for the transverse relaxation time of vapor cell nucleon was designed, which realized the functions of temperature control, xenon resonance frequency finding, magnetic field control and data processing and storage. The experimental results show that the automatic test system which has high measurement efficiency and test precision, stable and reliable work ability, and good man-machine interaction provides an effective measurement to test the vapor cell performance of NMRG.