Atomic accelerometers and gravimeters are usually based on freely falling atoms in atomic fountains, which not only limits their size but also robustness to environmental factors, such as tilts, magnetic fields, vibrations. Such limitations have precluded broad adoption the field, for geophysics, geology, inertial navigation. More recently, atom interferometers holding an optical lattice been d...

In this paper, we show that an atom interferometer inertial sensor, when associated with the auxiliary measurement of external vibrations, can be operated beyond its linear range and still keep a high acceleration sensitivity. We propose and compare two measurement procedures (fringe fitting and non-linear lock) that can be used to extract, without adding any bias, the mean phase of the interfe...

Abstract. Measurement error arising from vibration interference is recognized as the primary obstacle limiting accuracy and stability of laser absolute gravimeters. The present work addresses this issue by proposing a global search optimization algorithm that determines optimal value gravity based on measured time–displacement coordinates falling body signal obtained passive isolation system in...

c Tidal gravity observations have been carried out in Tenerife (Canary Islands) at the. base of the Teide volcano, more than two thousand meters above the sea level. The measurements have been done using a Lacoste&Romberg-G gravimeter (number 665), with electronic feedback during a period of six months. The results show, after a suitable correction of the ocean loading and attraction' effects, ...