Compact cold atom gravimeter for field applications

Abstract

We present a cold atom gravimeter dedicated to field applications. Despite the compactness of our gravimeter, we obtain performances (sensitivity 42 microGal/Hz^0.5, accuracy 25 microGal) close to the bestgravimeters. We report gravity measurements in an elevator which led us to the determination of the Earth's gravity gradient with a precision of 4 E. 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.

References in corpus (7)

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• Operating an atom interferometer beyond its linear range
• Off-resonant Raman transitions impact in an atom interferometer
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Cited by in corpus (51)

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• Demonstration of static atomic gravimetry using Kalman filter