利用原子干涉仪实现高精度惯性测量

High accuracy inertial measurement based on atom interferometer

综述了目前国内外正积极研制的原子干涉仪。它是建立在激光冷却、囚禁与操控原子理论基础上,利用原子本身作为自由下落的"测试物体"来测量仪器所受到的惯性力。这种新型惯性敏感器能以前所未有的精度同时测量物体的旋转角速度和线性加速度,并可通过原子对抛技术实现两种量测量的区分,这已为诸多实验所验证。报道了国内外原子干涉仪的最新研制进展。原子干涉仪的紧凑性和长时稳定性将使其在惯性测量领域获得更广泛的工程应用。

The atom interferometer was reviewed and its recent development and progress were reported. The interferometer, based on the theory of laser cooling, trapping and manipulation of atom, utilizes the atomic particles as free fall test masses to measure the experienced inertial force of the apparatus. Many tests show that the novel inertial sensors can measure the rotation and acceleration of apparatus with unprecedented sensitivity and precision, and distinguish them by counter-propagating beams of atoms. The atom interferometer can get extensive application in inertial measurement based on them due to its compactness and long-term stability.