Stability comparison of two absolute gravimeters: optical versus atomic interferometers
Atomic Physics
2014-06-27 v1 Geophysics
Instrumentation and Detectors
Abstract
We report the direct comparison between the stabilities of two mobile absolute gravimeters of different technology: the LNE-SYRTE Cold Atom Gravimeter and FG5X\#216 of the Universit\'e du Luxembourg. These instruments rely on two different principles of operation: atomic and optical interferometry. The comparison took place in the Walferdange Underground Laboratory for Geodynamics in Luxembourg, at the beginning of the last International Comparison of Absolute Gravimeters, ICAG-2013. We analyse a 2h10 duration common measurement, and find that the CAG shows better immunity with respect to changes in the level of vibration noise, as well as a slightly better short term stability.
Cite
@article{arxiv.1406.5134,
title = {Stability comparison of two absolute gravimeters: optical versus atomic interferometers},
author = {Pierre Gillot and Olivier Francis and Arnaud Landragin and Franck Pereira Dos Santos and Sébastien Merlet},
journal= {arXiv preprint arXiv:1406.5134},
year = {2014}
}
Comments
6 pages