Compact cold atom gravimeter for field applications

Understand

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.