Articles with "magnetic gradient" as a keyword



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A third-order magnetic gradient tensor optimization algorithm based on the second-order improved central difference method

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Published in 2021 at "AIP Advances"

DOI: 10.1063/5.0050493

Abstract: An improved method based on the second order improved central difference method is proposed to improve the third-order magnetic gradient tensor, which is affected by noise and characterized by poor stability. The third-order magnetic gradient… read more here.

Keywords: order; magnetic gradient; order magnetic; third order ... See more keywords

Design, experiment and modeling of a damper based on magnetic gradient pinch mode MR valve

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Published in 2024 at "Smart Materials and Structures"

DOI: 10.1088/1361-665x/ada100

Abstract: In this study, a novel magnetorheological (MR) damper designed based on the magnetic gradient pinch mode MR (MGPMR) valve, is investigated analytically and experimentally. The prototype and experimental platform are designed and established to characterize… read more here.

Keywords: gradient pinch; magnetic gradient; damper; based magnetic ... See more keywords

Optimized Magnetic Gradient Tensor Array Algorithm for Enhanced Positioning Accuracy of Underwater Weak Magnetic Targets

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Published in 2025 at "IEEE Sensors Journal"

DOI: 10.1109/jsen.2024.3518563

Abstract: This research utilized an 8-fluxgate array, based on the magnetic gradient tensor (MGT) method, to perform positioning trials within a controlled aquatic environment. The experiment featured five designated locations and targeted marginal magnetic signals of… read more here.

Keywords: gradient tensor; magnetic gradient; algorithm; positioning accuracy ... See more keywords

Nonsingular Calculation of Global Magnetic Gradient Tensor Based on Oblate Spheroidal Harmonics Representation

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Published in 2024 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2024.3404780

Abstract: A high-resolution global magnetic gradient tensor (MGT) model is an essential tool for aided navigation. However, the high-order expansion using the traditional spherical harmonic (SH) method will lead to nonconvergence in calculating locations near the… read more here.

Keywords: navigation; gradient tensor; magnetic gradient; global magnetic ... See more keywords

Bioinspired In-Grid Navigation and Positioning Based on an Artificially Established Magnetic Gradient

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Published in 2018 at "IEEE Transactions on Vehicular Technology"

DOI: 10.1109/tvt.2018.2866428

Abstract: In the past years, significant progresses have been achieved in signpost-based indoor navigation and positioning systems. In this paper, inspired by recent bionic researches on long-distance animal geomagnetic navigation, we propose an autonomous local navigation… read more here.

Keywords: magnetic gradient; established magnetic; navigation positioning; navigation ... See more keywords
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Reconstruction of Magnetic Susceptibility Using Full Magnetic Gradient Data

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Published in 2020 at "Computational Mathematics and Mathematical Physics"

DOI: 10.1134/s096554252006010x

Abstract: The paper discusses the specificities of solving the inverse problem of reconstructing the magnetic susceptibility using complete tensor magnetic gradient data. This problem reduces to solving a system of two three-dimensional Fredholm integral equations of… read more here.

Keywords: susceptibility; magnetic gradient; full magnetic; susceptibility using ... See more keywords

Pd-Fe alloy film with high magnetic gradient: structural and magnetic properties

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Published in 2023 at "Technical Physics"

DOI: 10.21883/tp.2023.02.55473.213-22

Abstract: An epitaxial film of the Pd-Fe alloy 116 nm thick with an iron concentration varying in depth from 2 at.% to 50 at.% has been synthesized. An experimental depth distribution profile of iron was obtained… read more here.

Keywords: film high; high magnetic; magnetic gradient; gradient structural ... See more keywords