Results 41 to 50 of about 1,280 (179)

Rapid Online Solid-State Battery Diagnostics with Optically Pumped Magnetometers

open access: yesApplied Sciences, 2020
Solid-state battery technology is motivated by the desire to deliver flexible power storage in a safe and efficient manner. The increasingly widespread use of batteries from mass production facilities highlights the need for a rapid and sensitive ...
Yinan Hu   +9 more
doaj   +1 more source

Magnetic Flow Metering with Optically Pumped Magnetometers (OPM)

open access: yes, 2023
6970We present a novel non-invasive flow metering procedure where the flow velocity of a fluid is determined using polarized hydrogen nuclei of the fluid as magnetic markers.
Schmieder, Leonhard   +2 more
core   +1 more source

Optimizing NV magnetometry for Magnetoneurography and Magnetomyography applications

open access: yesFrontiers in Neuroscience, 2023
Magnetometers based on color centers in diamond are setting new frontiers for sensing capabilities due to their combined extraordinary performances in sensitivity, bandwidth, dynamic range, and spatial resolution, with stable operability in a wide range ...
Chen Zhang   +12 more
doaj   +1 more source

Active Magnetic-Field Stabilization with Atomic Magnetometer

open access: yesSensors, 2020
A magnetically-quiet environment is important for detecting faint magnetic-field signals or nonmagnetic spin-dependent interactions. Passive magnetic shielding using layers of large magnetic-permeability materials is widely used to reduce the magnetic ...
Rui Zhang   +7 more
doaj   +1 more source

Measurement and cancellation of light shift in optically pumped magnetometers [PDF]

open access: yes, 2018
Light shift arising from the circularly polarized pump beam in atomic magnetometers can induce an undesired magnetic response, and thus affect their accuracy.
Li, R.   +7 more
core   +1 more source

An Optically Pumped Magnetometer with Omnidirectional Magnetic Field Sensitivity

open access: yesSensors, 2023
In mobile applications such as geomagnetic surveying, two major effects hamper the use of optically pumped magnetometers: dead zones, sensor orientations where the sensors signal amplitude drops; and heading errors, a dependence of the measured magnetic field value on the sensor orientation.
Volkmar Schultze   +5 more
openaire   +3 more sources

Multimodal neuroimaging with optically pumped magnetometers: A simultaneous MEG-EEG-fNIRS acquisition system

open access: yesNeuroImage, 2022
Multimodal neuroimaging plays an important role in neuroscience research. Integrated noninvasive neuroimaging modalities, such as magnetoencephalography (MEG), electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS), allow neural ...
Xingyu Ru   +18 more
doaj   +1 more source

Sensor array design of optically pumped magnetometers for accurately estimating source currents

open access: yesNeuroImage, 2023
An optically pumped magnetometer (OPM) is a new generation of magnetoencephalography (MEG) devices that is small, light, and works at room temperature. Due to these characteristics, OPMs enable flexible and wearable MEG systems.
Yusuke Takeda   +8 more
doaj   +1 more source

Optically pumped magnetometers reveal fasciculations non-invasively

open access: yesClinical Neurophysiology, 2021
This proof-of-principle-study evaluated the extent to which spontaneous activity (SA) of the muscle can be detected via non-invasive magnetomyography (MMG) with optically pumped magnetometers (OPM).Five patients, who together exhibited all forms of SA (fibrillations, positive sharp waves, fasciculations, myotonic discharges, complex-repetitive ...
Justus Marquetand   +11 more
openaire   +3 more sources

Hardware Design and Implementation of a High-Precision Optically Pumped Cesium Magnetometer System Based on the Human-Occupied Vehicle Platform

open access: yesApplied Sciences
High-precision magnetometers play a crucial role in ocean exploration, geophysical prospecting, and military and security applications. Installing them on human-occupied vehicle (HOV) platforms can greatly enhance ocean exploration capabilities and ...
Keyu Zhou, Qimao Zhang, Qisheng Zhang
doaj   +1 more source

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