4.6 Article

Continuous gravity measurement with a portable atom gravimeter

期刊

PHYSICAL REVIEW A
卷 108, 期 3, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.108.032811

关键词

-

向作者/读者索取更多资源

The study introduces a portable and robust home-built atom gravimeter (USTC-AG11) that operated continuously in a seismic station in Zhaotong, Yunnan for over five months. Using matter-wave interference principle, the atom gravimeter achieved high sensitivity to local gravity with micro-Gal level precision. The implementation of vibrational compensation technique significantly reduced noise levels and enabled long-term continuous operation of the atom gravimeter.
We report here a portable and robust home-built atom gravimeter (USTC-AG11) continuously working in a seismic station in Zhaotong, Yunnan, for over five months. Based on the principle of matter-wave interference, the atom gravimeter is very sensitive to the local gravity and reaches the precision of micro-Gal (1 x 10-8m/s2) level. With the technique of vibrational compensation, the sensitivity of the atom gravimeter root reaches 38 mu Gal/ Hz, the overall noise level is suppressed by 80% compared to the no-vibration-compensation method, and 95% of the vibration noise is effectively suppressed. The design of the atom gravimeter in the electronics and laser optics, especially the laser frequency and phase auto-relock technology, guarantees long-term continuous running. The long-term precision of the atom gravimeters is better than 2 mu Gal, which is comparable to the best classical gravimeter FG-5(X). Our work provides an application for the high-precision atomic gravimeter based on modern quantum sensing technology in the field of geophysics and geodesy survey.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据