Micromachines, 2022 We report a specially designed magnetic field gradiometer based on a single elliptical planar Hall effect (PHE) sensor, which allows measuring magnetic field at nine different positions in a 4 mm length scale.
Hariharan Nhalil +4 more
doaj +3 more sources
Construction of a Fluxgate Magnetic Gradiometer for Integration with an Unmanned Aircraft System
Remote Sensing, 2020 The use of unmanned aircraft systems (UASs) for geophysical exploration and environmental monitoring allows for flexible, quick, and effective surveys with high-resolution results.
Sierra Luoma, Xiaobing Zhou
doaj +3 more sources
Error Analysis and Correction of a Downhole Rotating Magnetic Full-Tensor Gradiometer
IEEE Access, 2020 Compared with ground magnetic measurement and aeromagnetic survey, downhole magnetic measurements can provide more abundant and accurate distribution information of ore deposits.
Yangyi Sui +4 more
doaj +3 more sources
Correction of Spacecraft Magnetic Field Noise: Initial Korean Pathfinder Lunar Orbiter MAGnetometer Observation in Solar Wind [PDF]
Sensors, 2023 The Korean Pathfinder Lunar Orbiter (KPLO)-MAGnetometer (KMAG) consists of three triaxial fluxgate sensors (MAG1, MAG2, and MAG3) that measure the magnetic field around the Moon.
Junhyun Lee +8 more
doaj +2 more sources
Drone-Borne Magnetic Gradiometry in Archaeological Applications [PDF]
SensorsThe use of magnetometers arranged in a gradiometer configuration offers a practical and widely used solution, particularly in archaeological applications where the sources of interest are generally shallow.
Filippo Accomando, Giovanni Florio
doaj +2 more sources
Computational design of a 3D magnetic particle imaging (MPI) prototype [PDF]
AIP AdvancesMagnetic particle imaging (MPI) is an emerging imaging modality that exploits the magnetization response of magnetic nanoparticle tracers. While MPI offers substantially higher resolution compared to magnetic resonance imaging, its translation to human ...
Shahriar Mostufa, Bahareh Rezaei, Kai Wu
doaj +2 more sources
Advances in Magnetic UAV Sensing: A Comparative Study of the MagNimbus and MagArrow Magnetometers [PDF]
SensorsThe integration of miniaturized magnetometers with Unmanned Aerial Vehicles (UAVs) has revolutionized magnetic surveying, offering flexible, high-resolution, and cost-effective solutions for geophysical applications also in remote areas.
Filippo Accomando +6 more
doaj +2 more sources
Gradient phase and amplitude errors in atomic magnetic gradiometers for biomagnetic imaging systems [PDF]
iScienceSummary: The cross-axis projection error (CAPE) caused by residual magnetic fields has recently attracted widespread attention. In this study, we propose a more specific theoretical model and expand the CAPE in gradient measurements. We first report that
Ziqi Yuan +5 more
doaj +2 more sources
Pulsed vector atomic magnetometer using an alternating fast-rotating field [PDF]
Nature CommunicationsWe introduce a vector atomic magnetometer that employs a fast-rotating magnetic field applied to a pulsed 87Rb scalar atomic magnetometer. This approach enables simultaneous measurements of the total magnetic field and its two polar angles relative to ...
Tao Wang +5 more
doaj +2 more sources
Optimization of a Third-Order Gradiometer for Operation in Unshielded Environments [PDF]
, 2005 The optimum geometry of a third-order gradiometer for operation in unshielded environments is discussed. The optimization result depends on the specific signal and noise conditions. The fetal heart is considered as an example of the signal source.
Brake, H.J.M. ter +3 more
core +20 more sources