Hybrid atomic gyroscope

该项目开发了一种利用量子技术检测旋转的传感器。这种传感器与加速度传感器一起构成了惯性导航系统的关键部件，即使在其他确定其位置的手段可能失灵（例如GPS信号失效）的情况下，也能实现船舶、飞机和其他车辆的自我跟踪。旋转传感器跟踪车辆的方向，例如用于无人机的稳定。然而，为了长时间跟踪，非常高的精度（低噪声）和高精度（真实旋转速率）是必要的，这样累积的误差不会使推断的位置和方向无效。基于物质波干扰的量子传感器有望实现这一目标，但作为独立的传感器，它们的数据速率太慢，无法实现导航。在这个项目中，我们探索了两种不同原子传感器的组合：超冷原子陀螺仪可以非常精确，核磁共振陀螺仪可以足够精确和快速。这项研究工作将解决量子测量的原理，以及这种传感器的小型化和坚固化，减少典型实验室设置的一系列电子和机械开销。理论分析将确定如何将数据最好地结合起来，为混合陀螺仪系统提供最佳的测量结果。

This project develops a sensor to detect rotations using quantum technology. Such sensors, together with acceleration sensors, form key components in inertial navigation systems that allow for self-tracking of ships, aircraft and other vehicles even when other means of determining their position may break down, such as a failing GPS signal. Rotation sensors track the vehicles orientation and are used e.g. for the stabilisation of drones. However, in order to track over long times, very high precision (low noise) and high accuracy (true rotation rates) are necessary such that accumulating errors do not invalidate the inferred position and orientation. Quantum sensors based on the interference of matter waves promise to deliver just that, but as stand-alone sensors, their data rates are too slow to allow for navigation. In this project, we explore the combination of two different atomic sensors: an ultra-cold atom gyroscope that can be very accurate with a nuclear magnetic resonance gyroscope that can be sufficiently precise and fast.The research work will address the principles of the quantum measurements as well as miniaturization and ruggedization of such sensors, reducing a range of electronic and mechanical overhead from a typical laboratory setup. A theoretical analysis will determine how the data can be best combined to deliver optimal measurement results for the hybrid gyroscope system.