Results 21 to 30 of about 2,662 (199)

Experimental analysis of the performance of a new shipboard gravity gradient measurement system

open access: yesFrontiers in Physics, 2023
The gravity gradient tensor, which has a higher resolution than gravity, is used in a variety of fields, including the discovery of energy resources, auxiliary navigation, and national defense building.
Rui Li   +7 more
doaj   +1 more source

Chinese Gravimetry Augment and Mass Change Exploring Mission Status and Future [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2023
The satellite gravimetry technology effectively recovers the global Earth’s gravity field. Since 2000s, HL-SST satellite CHAMP, LL-SST satellite GRACE, Gravity Gradient Measurement (GGM) satellite GOCE have been launched successfully, producing some ...
Yun XIAO, Yuanxi YANG, Zongpeng PAN, Yunlong WU, Zehua GUO
doaj   +1 more source

CALIBRATION METHOD FOR GRAVITY GRADIOMETERS BY MEANS OF TWO ROTATING CYLINDERS

open access: yesПриборы и методы измерений, 2015
The problem of maintaining a constant gravitational gradient in a relatively large volume of space is considered.  This  provides  a  well  defined  input  signal  to  a  gravity  gradiometer  for  the  purpose  of  its calibration.
I. Z. Gilavdary, A. Veryaskin
doaj   +1 more source

Proof-of-principle demonstration of vertical gravity gradient measurement using a single proof mass double-loop atom interferometer [PDF]

open access: yes, 2018
We demonstrate a proof-of-principle of direct Earth gravity gradient measurement with an atom interferometer-based gravity gradiomter using a single proof mass of cold 87 rubidium atoms.
Bidel, Yannick   +5 more
core   +2 more sources

Drag-free and attitude control for the GOCE satellite [PDF]

open access: yes, 2008
The paper concerns Drag-Free and Attitude Control of the European satellite Gravity field and steady-state Ocean Circulation Explorer (GOCE) during the science phase.
Aguirre-Martinez   +13 more
core   +1 more source

STAGES OF DEVELOPMENT AND STATE OF ENGINEERING OF GRAVITY GRADIOMETERS FOR MOVING OBJECTS. (Review)

open access: yesПриборы и методы измерений, 2016
The main steps of creating the gravity gradiometers for the measurement of inhomogineasly of gravitational fields on different mobile carriers, including in conditions of space, are considered on the basis of the analysis of the open literature. The role
I. Z. Gilavdary, N. N. Riznookaya
doaj   +1 more source

Atom interferometry gravity-gradiometer for the determination of the Newtonian gravitational constant G [PDF]

open access: yes, 2006
We developed a gravity-gradiometer based on atom interferometry for the determination of the Newtonian gravitational constant \textit{G}. The apparatus, combining a Rb fountain, Raman interferometry and a juggling scheme for fast launch of two atomic ...
Bertoldi, A.   +9 more
core   +2 more sources

Laboratory dynamic accuracy evaluation method and system verification for gravity gradiometer

open access: yes地震科学进展
To meet the demand for reliably evaluating the measurement accuracy of the gravity gradiometer under dynamic conditions, a method for dynamically assessing the accuracy of the gravity gradiometer in a laboratory setting was proposed.
Da Li   +5 more
doaj   +1 more source

Spaceborne Atom-Interferometry Gravity Gradiometry Design towards Future Satellite Gradiometric Missions

open access: yesAerospace, 2022
Atom-interferometry gravity gradiometry has been developed as a promising technique for future gravity gradiometric missions after GOCE due to its greater sensitivity in micro-gravity environments and constant performance over the measurement bandwidth ...
Zhu Zhu   +4 more
doaj   +1 more source

1D along-track pre-processing of the GOCE gravity gradients and nonlinear filtering of the radial components Vzz in spatial domain

open access: yesContributions to Geophysics and Geodesy, 2023
The paper presents pre-processing and nonlinear filtering of the GOCE gravity gradients (GGs) in spatial domain. At first, a multiple fully automatic 1D along-track pre-processing of the GOCE GGs in the gradiometer reference frame (GRF) is introduced ...
Róbert ČUNDERLÍK   +2 more
doaj   +1 more source

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