Results 1 to 10 of about 6,866 (162)
Magnetic field strength gradiometer [PDF]
Омский научный вестник, 2021 Measurements of magnetic field parameters are the basis of all magnetic measurements. Most methods of measuring magnetic field parameters are based on force (energy) interaction of magnetic field with macro- or microscopic currents and ...
R. A. Akhmedzhanov +2 more
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A microfabricated optically-pumped magnetic gradiometer. [PDF]
Appl Phys Lett, 2017 We report on the development of a microfabricated atomic magnetic gradiometer based on optical spectroscopy of alkali atoms in the vapor phase. The gradiometer, which operates in the spin-exchange relaxation free regime, has a length of 60 mm and cross sectional diameter of 12 mm, and consists of two chip-scale atomic magnetometers which are ...
Sheng D +5 more
europepmc +5 more sources
Quantum magnetic gradiometer with entangled twin light beams. [PDF]
Sci Adv, 2023 In the past few decades, optical magnetometry has experienced remarkable development and reached to an outstanding sensitivity. For magnetometry based on optical readout of atomic ensemble, the fundamental limitation of sensitivity is restricted by spin projection noise and photon shot noise.
Wu S +8 more
europepmc +3 more sources
Full Tensor Eigenvector Analysis on Air-Borne Magnetic Gradiometer Data for the Detection of Dipole-Like Magnetic Sources [PDF]
Sensors, 2017 The detection of dipole-like sources, such as unexploded ordnances (UXO) and other metallic objects, based on a magnetic gradiometer system, has been increasingly applied in recent years.
Boxin Zuo, Lizhe Wang, Weitao Chen
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Dual Resonator MEMS Magnetic Field Gradiometer [PDF]
Sensors, 2019 Accurate knowledge of the spatial magnetic field distribution is necessary when measuring field gradients. Therefore, a MEMS magnetic field gradiometer is reported, consisting of two identical, but independent laterally oscillating masses on a single ...
Matthias Kahr +7 more
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Recent Developments in Fabrication Methods and Measurement Schemes for Optically Pumped Magnetic Gradiometers: A Comprehensive Review [PDF]
Micromachines, 2023 Optically pumped gradiometers have long been utilized in measurement in the International Geomagnetic Reference Field (IGRF). With advancements in technologies such as laser diodes and microfabrication, integrated gradiometers with compact sizes have ...
Haifeng Dong +3 more
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Bragg gravity-gradiometer using the 1S0–3P1 intercombination transition of 88Sr [PDF]
New Journal of Physics, 2018 We present a gradiometer based on matter-wave interference of alkaline-earth-metal atoms, namely ^88 Sr. The coherent manipulation of the atomic external degrees of freedom is obtained by large-momentum-transfer Bragg diffraction, driven by laser fields ...
R P del Aguila +5 more
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Motion artifact variability in biomagnetic wearable devices [PDF]
Frontiers in Medical TechnologyMotion artifacts can be a significant noise source in biomagnetic measurements when magnetic sensors are not separated from the signal source. In ambient environments, motion artifacts can be up to ten times stronger than the desired signals, varying ...
Negin Ghahremani Arekhloo +12 more
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The Compensation Method of Vehicle Magnetic Interference for the Magnetic Gradiometer [PDF]
Advances in Mathematical Physics, 2013 The magnetic interference of vehicle imposes a strong influence on the magnetic gradiometer. Based on the mechanism of the vehicle magnetic interference, we firstly use the difference algorithm of the magnetic gradient tensor to fuse the magnetic ...
Junwei Lv +3 more
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A Single-Cell Optically Pumped Intrinsic Gradiometer [PDF]
SensorsOptically pumped magnetometers (OPMs) provide a non-cryogenic alternative to superconducting quantum interference devices (SQUIDs) for detecting weak biomagnetic fields.
Nicholaus Zilinski +3 more
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