Tilt adjustment for a portable absolute atomic gravimeter

Xie Hong-Tai^{1, 2, 3}, Chen Bin^{1, 2, 3}, Long Jin-Bao^{1, 2, 3}, Xue Chun⁴, Chen Luo-Kan^{1, 2, 3}, Chen Shuai^{1, 2, 3, †}

Variations over time of the four tilt angles. (a) The observed drifts of four angles α_x, α_y, β_x and β_y. (b) The calculated drift of g-value corresponding to the drifts of the tilting angles.