Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China.
University of Chinese Academy of Sciences, Beijing 100049, China.
Sensors (Basel). 2023 Jul 3;23(13):6115. doi: 10.3390/s23136115.
We design and implement a compact Rb atom gravimeter (AG). The diameter of the sensor head is 35 cm and the height is 65 cm; the optical and electronic systems are installed in four standard 3U cabinets. The measurement accuracy of this AG is improved by suppress laser crosstalk and light shift. In addition, the angle of the Raman laser reflector is adjusted and locked, and the attitude of the sensing head is automatically adjusted, and the vibration noise is also compensated. The comparison measurement results between this AG and the superconducting gravimeter indicate that its long-term stability is 0.65 μGal @50000 s.
我们设计并实现了一种紧凑型铷原子重力仪（AG）。传感器头部的直径为 35 厘米，高度为 65 厘米；光学和电子系统安装在四个标准的 3U 机柜中。通过抑制激光串扰和光频移，提高了该 AG 的测量精度。此外，还调整并锁定了 Raman 激光反射镜的角度，自动调整了传感头的姿态，并补偿了振动噪声。该 AG 与超导重力仪的比较测量结果表明，其在 50000 秒内的长期稳定性为 0.65μGal。
