Data/hora: 14/06/2024 03:45:14

Provedor de dados: | 5
País: | France
Título: | Absolute marine gravimetry with matter-wave interferometry
Autores: | Bidel, Y.; Zahzam, N.; Blanchard, C.; Bonnin, A.; Cadoret, M.; Bresson, A.; Rouxel, D.; Lequentrec-lalancette, M. F.
Data: | 2018-02
Ano: | 2018
Resumo: | 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.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00426/53784/54678.pdf

https://archimer.ifremer.fr/doc/00426/53784/54679.pdf

DOI:10.1038/s41467-018-03040-2

https://archimer.ifremer.fr/doc/00426/53784/

Editor: | Nature Publishing Group
Formato: | application/pdf
Fonte: | Nature Communications (2041-1723) (Nature Publishing Group), 2018-02 , Vol. 9 , N. 1 , P. 627 (9p.)

Fonte:

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