Quantum gravimeters are a promising new development allowing for continuous absolute gravity monitoring while remaining user-friendly and transportable. In this study, we present experiments carried out to assess the capacity of the AQG#B01 in view of future deployment as a field gravimeter for hydrogeophysical applications. The AQG#B01 is the field version follow-up of the AQG#A01 portable absolute quantum gravimeter developed by the French quantum sensor company Muquans. We assess the instrument's performance in terms of stability (absence of instrumental drift) and sensitivity in relation to other gravimeters. No significant instrumental drift was observed over several weeks of measurement. We discuss the observations concerning the accuracy of the AQG#B01 in comparison with a state-of-the-art absolute gravimeter (Micro-g-LaCoste, FG5#228). We report the repeatability to be better than 50 nm s⁻². This study furthermore investigates whether changes in instrument tilt and external temperature and a combination of both, which are likely to occur during field campaigns, influence the measurement of gravitational attraction. We repeatedly tested external temperatures between 20 and 30 ^∘C and did not find any significant effect. As an example of a geophysical signal, a 100 nm s⁻² gravity change is detected with the AQG#B01 after a rainfall event at the Larzac geodetic observatory (southern France). The data agreed with the gravity changes measured with a superconducting relative gravimeter (GWR, iGrav#002) and the expected gravity change simulated as an infinite Bouguer slab approximation. We report 2 weeks of stable operation under semi-terrain conditions in a garage without temperature-control. We close with operational recommendations for potential users and discuss specific possible future field applications. While not claiming completeness, we nevertheless present the first characterization of a quantum gravimeter carried out by future users. Selected criteria for the assessment of its suitability in field applications have been investigated and are complemented with a discussion of further necessary experiments.

中文翻译：

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绝对量子重力仪（AQG＃B01）的首次评估，供将来进行现场实验

量子重力仪是一个有前途的新发展，它可以进行连续的绝对重力监测，同时保持用户友好性和可运输性。在这项研究中，我们目前进行的实验旨在评估AQG＃B01的能力，以作为将来在现场重力仪中用于水文地球物理应用的评估。AQG＃B01是法国量子传感器公司Muquans开发的AQG＃A01便携式绝对量子重力仪的现场版本后续产品。我们根据相对于其他重力计的稳定性（不存在仪器漂移）和灵敏度来评估仪器的性能。在数周的测量中未观察到明显的仪器漂移。我们将与最先进的绝对重力仪（Micro-g-LaCoste，FG5＃228）相比较，讨论有关AQG＃B01精度的观察结果。 nm s ^-2。这项研究还研究了在野战期间可能发生的仪器倾斜度和外部温度的变化以及两者的组合是否会影响重力引力的测量。我们反复测试外部温度20和30之间 ^∘ Ç，并没有发现任何显著的效果。作为地球物理信号的一个例子，100  nm s ^-2在Larzac大地观测站（法国南部）发生降雨事件后，使用AQG＃B01检测到重力变化。数据与使用超导相对重力仪（GWR，iGrav＃002）测得的重力变化相符，并且将预期的重力变化模拟为无限的布格平板近似。我们报告在没有温度控制的车库中半地形条件下可稳定运行2周。最后，我们向潜在用户提供了操作建议，并讨论了未来可能的特定野外应用。尽管不主张完整性，但我们还是展示了未来用户进行的量子重力仪的首次表征。评估了其在现场应用中的适用性评估的选定标准，并对其进行了进一步的必要实验的讨论作为补充。