Only a few systems of this model exist worldwide.

The AQG is currently the only available quantum gravity sensor on the market. Thanks to its innovative technology, it offers unique features:

• Absolute gravity measurement with µGal-level precision
• Automated, continuous data acquisition over several months with no long-term drift
• Excellent immunity to ground vibrations due to an active compensation system (no mechanical isolation required)
• Easy and fast setup: Ready to measure within one hour – no laser alignment, no mechanical assembly, no preliminary pumping, no superspring required
• Compact and portable design
• Low maintenance requirements, particularly due to the absence of moving parts in the vacuum chamber
• High repeatability of absolute measurements, with an accuracy of a few µGal between different measurement stations

Principle of Operation

Absolute gravimeters operate based on the principle of a ballistic gravimeter, which measures the absolute acceleration due to gravity. This is achieved by tracking the free vertical motion of a test mass over time using a Michelson interferometer.

The AQG follows a similar measurement principle but, instead of using a mechanical mass, it utilizes atoms to perform free-fall measurements.

The section Hydrology operates one system of this type (AQG-B02).

Manufacturer: Muquans