Compact cold atom gravimeter for field applications

Compact cold atom gravimeter for field applications
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DOI:
10.1063/1.4801756
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发表时间:
2013-04-08
影响因子:
4
通讯作者:
Bresson, Alexandre
Bresson, Alexandre
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Bidel, Yannick;Carraz, Olivier;Bresson, Alexandre

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我们推出了一款专用于现场应用的冷原子重力仪。尽管我们的重力计结构紧凑,但我们获得了接近最佳重力计的性能(灵敏度 42 mu Gal/Hz(1/2),精度 25 mu Gal)。我们报告了电梯中的重力测量结果,这使我们能够以 4E 的精度确定地球重力梯度。这些在非实验室环境中进行的测量表明,我们的重力仪技术对于现场应用来说足够紧凑、可靠且稳健。最后,我们报告了移动电梯中的重力测量结果,这为飞机或船上的绝对重力测量开辟了道路。 (C) 2013 AIP 出版有限责任公司
We present a cold atom gravimeter dedicated to field applications. Despite the compactness of our gravimeter, we obtain performances (sensitivity 42 mu Gal/Hz(1/2), accuracy 25 mu Gal) close to the best gravimeters. We report gravity measurements in an elevator which led us to the determination of the Earth's gravity gradient with a precision of 4E. These measurements in a non-laboratory environment demonstrate that our technology of gravimeter is enough compact, reliable, and robust for field applications. Finally, we report gravity measurements in a moving elevator which open the way to absolute gravity measurements in an aircraft or a boat. (C) 2013 AIP Publishing LLC