Results 31 to 40 of about 6,905 (192)

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

research Paper: Atomic Gradiometer for Recording the Simulated Human Brain Signal in Unshielded Environment [PDF]

open access: yesفیزیک کاربردی ایران
The fields resulting from the brain's neural activities provide essential information in diagnosing and treating brain diseases such as epilepsy, convulsions, and brain tumors.
Mohammad Mahdi Tehranchi   +4 more
doaj   +1 more source

Superparamagnetic nanoparticle detection system by using a fundamental mode orthogonal fluxgate (FM-OFG) gradiometer

open access: yesAIP Advances, 2017
A new magnetic nanoparticle detection system by using a fundamental mode orthogonal fluxgate (FM-OFG) gradiometer and ac magnetizing coil has been developed.
Hikaru Karo, Ichiro Sasada
doaj   +1 more source

The study of dependence of magnetic field gradient on parameters of hardened steel layer at pulse magnetic method of nondestructive testing

open access: yesОмский научный вестник, 2023
An assessment is made of the influence of the parameters of a controlled part by the magnetic method of non-destructive testing on the gradient of the magnetic field strength of the measuring transducer.
O. V. Tarasenko   +2 more
doaj   +1 more source

Magnetic Field Coils for Gradiometer Balancing

open access: yesIEEE Transactions on Applied Superconductivity, 2007
We present a design of a compact set of biplanar coils which produces magnetic fields of eight different profiles for the purpose of gradiometer balancing. The magnetic field profiles correspond to uniform magnetic fields in three orthogonal directions and five linearly independent first-order gradients.
Uzunbajakau, S.   +5 more
openaire   +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

Picoammeters Based on Gradiometric Superconducting Quantum Interference Devices

open access: yesApplied Sciences, 2022
High-sensitivity ac current sensors based on a superconducting quantum interference device have been designed, fabricated and characterized. In particular, double-washer schemes in either parallel or series configurations have been considered.
Antonio Vettoliere, Carmine Granata
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

Magnetic Prospection in the Eastern Lower City of Artashat-Artaxata in the Ararat Plain of Armenia

open access: yesElectrum, 2022
In March of 2021, the Berlin-based company cmp continued geophysical prospection works at the ancient city of Artashat-Artaxata (Ararat Province, Armenia).
Achim Lichtenberger   +3 more
doaj   +1 more source

Analysis of the Feasibility of UAS-Based EMI Sensing for Underground Utilities Detection and Mapping

open access: yesRemote Sensing, 2022
This paper investigates the feasibility of using a linear current sensing (LCS) technique integrated on an unmanned aerial system (UAS) for detecting and mapping underground infrastructure rapidly and cost-effectively.
Caylin A. Hartshorn   +5 more
doaj   +1 more source

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