Results 1 to 10 of about 2,278 (138)
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.
Lior Klein, Moty Schultz, Asaf Grosz
exaly +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.
Xiaobing Zhou, Zhou Xiaobing
exaly +3 more sources
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
doaj +2 more sources
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
doaj +2 more sources
Gradiometer Using Separated Diamond Quantum Magnetometers
Sensors, 2021 The negatively charged nitrogen-vacancy (NV) center in diamonds is known as the spin defect and using its electron spin, magnetometry can be realized even at room temperature with extremely high sensitivity as well as a high dynamic range.
Takayuki Iwasaki +2 more
exaly +3 more sources
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
doaj +2 more sources
Balancing of Resonant Differential Coils for Broadband Inductive Sensor Systems [PDF]
SensorsDifferential coils are frequently implemented in inductive sensing systems. They can be considered as a single coil that is made up of two or more subcoils, wound in series opposition.
Liam A. Marsh +2 more
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An Aided Navigation Method Based on Strapdown Gravity Gradiometer
Sensors, 2021 The gravity gradient is the second derivative of gravity potential. A gravity gradiometer can measure the small change of gravity at two points, which contains more abundant navigation and positioning information than gravity.
Baiqing Hu, Lubin Chang, F J Qin
exaly +3 more sources
New Matching Method for Accelerometers in Gravity Gradiometer
Sensors, 2017 The gravity gradiometer is widely used in mineral prospecting, including in the exploration of mineral, oil and gas deposits. The mismatch of accelerometers adversely affects the measuring precision of rotating accelerometer-based gravity gradiometers ...
Meiping Wu, Juliang Cao, Cao Juliang
exaly +3 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