Results 11 to 20 of about 12,893 (295)

Precision Magnetometers for Aerospace Applications: A Review

open access: yesSensors, 2021
Aerospace technologies are crucial for modern civilization; space-based infrastructure underpins weather forecasting, communications, terrestrial navigation and logistics, planetary observations, solar monitoring, and other indispensable capabilities ...
James S. Bennett   +8 more
doaj   +2 more sources

Atomic magnetometers and their application in industry [PDF]

open access: yesFrontiers in Physics, 2023
In modern detection techniques, high-precision magnetic field detection plays a crucial role. Atomic magnetometers stand out among other devices due to their high sensitivity, large detection range, low power consumption, high sampling rate, continuous ...
Xuanyao Bai   +7 more
doaj   +2 more sources

Choice of Magnetometers and Gradiometers after Signal Space Separation

open access: yesSensors, 2017
Background: Modern Elekta Neuromag MEG devices include 102 sensor triplets containing one magnetometer and two planar gradiometers. The first processing step is often a signal space separation (SSS), which provides a powerful noise reduction.
Pilar Garcés   +3 more
doaj   +3 more sources

Magnetometers for tracking metallic targets [PDF]

open access: yes2010 13th International Conference on Information Fusion, 2010
Starting from Maxwell's equations, we derive a sensor model for three-axis magnetometers suitable for localization and tracking applications. The model depends on the relative position between the sensor and the target, and a physical magnetic multipole model of the target.
Wahlström, Niklas   +2 more
openaire   +4 more sources

Silent Localization of Underwater Sensors Using Magnetometers

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
Sensor localization is a central problem for sensor networks. If the sensor positions are uncertain, the target tracking ability of the sensor network is reduced.
Jonas Callmer   +2 more
doaj   +3 more sources

A Test Setup for the Characterization of Lorentz-Force MEMS Magnetometers [PDF]

open access: yesIEEE Open Journal of Circuits and Systems, 2021
Lorentz-force MEMS magnetometers are interesting candidates for the replacement of magnetometers in consumer electronics products. Plenty of works in the literature propose MEMS magnetometers, their readout circuits and modulations.
Josep Maria Sanchez-Chiva   +3 more
doaj   +2 more sources

Noninvasive Magnetic-Marking-Based Flow Metering with Optically Pumped Magnetometers

open access: yesApplied Sciences, 2022
We present a noninvasive procedure that measures the flow velocity of a fluid by using polarized hydrogen nuclei in the fluid. The measurement procedure is based on a time-of-flight method where magnetic information is applied on the fluid with a ...
Leonhard Schmieder   +3 more
doaj   +2 more sources

COMPARISON OF MAGNETIC FIELD'S DAILY VARIATION USING TWO MAGNETOMETERS

open access: yesRudarsko-geološko-naftni Zbornik, 1999
Introducing late proton magnetometers, it was necessary to determine their quality and instrument calibration. Therefore, both magnetometers were measuring daily variation during the eight hours.
Tihomir Gregl , Gordan Brzica
doaj   +2 more sources

In Situ Underwater Localization of Magnetic Sensors Using Natural Computing Algorithms

open access: yesSensors, 2023
In the shallow water regime, several positioning methods for locating underwater magnetometers have been investigated. These studies are based on either computer simulations or downscaled laboratory experiments. The magnetic fields created at the sensors’
Roger Alimi, Elad Fisher, Kanna Nahir
doaj   +1 more source

Modelling of cavity optomechanical magnetometers [PDF]

open access: yes, 2018
Cavity optomechanical magnetic field sensors, constructed by coupling a magnetostrictive material to a micro-toroidal optical cavity, act as ultra-sensitive room temperature magnetometers with tens of micrometre size and broad bandwidth, combined with a ...
Halina Rubinsztein-Dunlop   +7 more
core   +2 more sources

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