Key Benefits

Application

1.Absolute gravity measurement at the µGal level (no long-term drift observed), at a few Hz cycling frequency

2.Highly Sensitive Absolute Measurement :

50 μGal/ ; sensitivity of 2 μGal within 25 min

3.Excellent tolerance to ground vibrations thanks to an active compensation system (no superpring is required)

4.Possibility of automated Continuous Data Acquisition for several month

5.Reproductibility of the absolute measurement after each change of location within a few μGal

6.Compact and transportable sensor

7.Highly reduced Maintenance Constraints as there are no moving parts in our vacuum chamber

8.Ease and quickness of Operation : Absolute Quantum Gravimeter is ready to measure within 1 h (no laser alignment nor mechanical assembling, no preliminary pumping, no superspring);

9.User-friendly software requiring no knowledge in quantum physics

Geodynamics (e.g. Seismology and Volcanology), Geodesy and Hydrology

A single unit of Absolute Quantum Gravimeter one can perform : station based long-term monitoring of g in presence of  seismic noise ; local absolute determination of g and easy change of location ; gravity mapping without redundant loops and high-precision transfers of g (indoor mapping, gravity gradients …).

A hybridized version of our Absolute Quantum Gravimeter allows to obtain an acceleration signal which is :

1.Very large band [DC ; 430 Hz], and ultra-sensitive

2.Accurate and ultra-stable on the long-term

A hybridized version of our Absolute Quantum Gravimeter provides both the value of g and seismic signal simultaneously. This is especially intended to support seismic and tectonic surveys.