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Absolute marine gravimetry with matter-wave interferometry

Measuring gravity from an aircraft or a ship is essential in geodesy, geophysics, mineral and hydrocarbon exploration, and navigation. Today, only relative sensors are available for onboard gravimetry. This is a major drawback because of the calibration and drift estimation procedures which lead to...

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Autores principales: Bidel, Y., Zahzam, N., Blanchard, C., Bonnin, A., Cadoret, M., Bresson, A., Rouxel, D., Lequentrec-Lalancette, M. F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5809417/
https://www.ncbi.nlm.nih.gov/pubmed/29434193
http://dx.doi.org/10.1038/s41467-018-03040-2
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author Bidel, Y.
Zahzam, N.
Blanchard, C.
Bonnin, A.
Cadoret, M.
Bresson, A.
Rouxel, D.
Lequentrec-Lalancette, M. F.
author_facet Bidel, Y.
Zahzam, N.
Blanchard, C.
Bonnin, A.
Cadoret, M.
Bresson, A.
Rouxel, D.
Lequentrec-Lalancette, M. F.
author_sort Bidel, Y.
collection PubMed
description Measuring gravity from an aircraft or a ship is essential in geodesy, geophysics, mineral and hydrocarbon exploration, and navigation. Today, only relative sensors are available for onboard gravimetry. This is a major drawback because of the calibration and drift estimation procedures which lead to important operational constraints. Atom interferometry is a promising technology to obtain onboard absolute gravimeter. But, despite high performances obtained in static condition, no precise measurements were reported in dynamic. Here, we present absolute gravity measurements from a ship with a sensor based on atom interferometry. Despite rough sea conditions, we obtained precision below 10(−5) m s(−2). The atom gravimeter was also compared with a commercial spring gravimeter and showed better performances. This demonstration opens the way to the next generation of inertial sensors (accelerometer, gyroscope) based on atom interferometry which should provide high-precision absolute measurements from a moving platform.
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spelling pubmed-58094172018-02-14 Absolute marine gravimetry with matter-wave interferometry Bidel, Y. Zahzam, N. Blanchard, C. Bonnin, A. Cadoret, M. Bresson, A. Rouxel, D. Lequentrec-Lalancette, M. F. Nat Commun Article Measuring gravity from an aircraft or a ship is essential in geodesy, geophysics, mineral and hydrocarbon exploration, and navigation. Today, only relative sensors are available for onboard gravimetry. This is a major drawback because of the calibration and drift estimation procedures which lead to important operational constraints. Atom interferometry is a promising technology to obtain onboard absolute gravimeter. But, despite high performances obtained in static condition, no precise measurements were reported in dynamic. Here, we present absolute gravity measurements from a ship with a sensor based on atom interferometry. Despite rough sea conditions, we obtained precision below 10(−5) m s(−2). The atom gravimeter was also compared with a commercial spring gravimeter and showed better performances. This demonstration opens the way to the next generation of inertial sensors (accelerometer, gyroscope) based on atom interferometry which should provide high-precision absolute measurements from a moving platform. Nature Publishing Group UK 2018-02-12 /pmc/articles/PMC5809417/ /pubmed/29434193 http://dx.doi.org/10.1038/s41467-018-03040-2 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Bidel, Y.
Zahzam, N.
Blanchard, C.
Bonnin, A.
Cadoret, M.
Bresson, A.
Rouxel, D.
Lequentrec-Lalancette, M. F.
Absolute marine gravimetry with matter-wave interferometry
title Absolute marine gravimetry with matter-wave interferometry
title_full Absolute marine gravimetry with matter-wave interferometry
title_fullStr Absolute marine gravimetry with matter-wave interferometry
title_full_unstemmed Absolute marine gravimetry with matter-wave interferometry
title_short Absolute marine gravimetry with matter-wave interferometry
title_sort absolute marine gravimetry with matter-wave interferometry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5809417/
https://www.ncbi.nlm.nih.gov/pubmed/29434193
http://dx.doi.org/10.1038/s41467-018-03040-2
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