冷原子重力仪研究进展综述

Review of Research Advance on Cold-atom Gravimeter

冷原子重力仪利用激光冷却、原子干涉操控、原子探测等技术实现绝对重力加速度测量,是30年来得以快速发展的一种新型量子传感器,目前其测量灵敏度已经超过传统激光干涉绝对重力仪,测量不确定度也达到同等水平,在计量溯源、基础科学研究、地球物理、资源勘探、自主导航等方面具有重要的应用价值。对冷原子重力仪的原理和优势进行了分析,介绍了冷原子重力仪的系统组成和发展趋势,对冷原子重力仪的国内外研究水平、发展动态和趋势,特别是在动态应用场景下的要点进行了分析和梳理。

The cold atom gravimeter uses laser cooling,atomic interference manipulation,and other technologies to achieve absolute gravity acceleration measurement.It is a new type of quantum sensor that has developed rapidly over the past three decades.Currently,its measurement sensitivity has exceeded that of traditional laser interference absolute gravimeters,and the measurement uncertainty has reached the same level.In metrology traceability,basic scientific research,geophysics,resource exploration,autonomous navigation and other aspects have important application value.Analyzes the principle of cold atom gravimeters,introduces the research progress and development trend of cold atom gravimeters,and analyzes and combs the research direction of cold atom gravimeters,especially the key points in dynamic application scenarios.