Flux-gate magnetic field sensor based on yttrium iron garnet films for magnetocardiography investigations

Vetoshko, P. M.; Гусев, Н. А.; Chepurnova, D. A.; Самойлова, Е. В.; Syvorotka, I.I.; Syvorotka, I.I.; Zvezdin, A. K.; Коротаева, А. А.; Belotelov, V. I.

doi:10.1134/s1063785016080289

Cited by 30 publications

(21 citation statements)

References 14 publications

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“…Reassuringly, based on our previous studies, we can expect low level of cross-talks between the sensors. The YIGM considered in this publication has previously been used within the framework of bio-magnetic measurements: detailed studies of the vector distribution of the magnetic field created by the human heart [28, 29], as well as small animals [30] were carried out. Additionally, as a part of the magnetocardiography device development, a three-channel system with three simultaneously operating sensors has been built.…”

Section: Discussionmentioning

confidence: 99%

Evolution of MEG: a first MEG-feasible fluxgate magnetometer

Koshev

Butorina

Skidchenko

et al. 2021

Preprint

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In the current article we present a first solid-state sensor feasible for magnetoencephalography (MEG), and working at room temperature. The sensor is a fluxgate magnetometer based on yttrium-iron garnet films (YIGM). In this feasibility study, we prove the concept of using the YIGM in terms of MEG by registering a simple brain-induced field: the human alpha rhythm (The data that support the findings of this study are available from the corresponding author upon reasonable request). All the experiments and results are validated with the usage of another kind of high-sensitive magnetometers - optically pumped magnetometer (OPM), which currently appears to be well-established in terms of MEG.

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Section: Discussionmentioning

confidence: 99%

Evolution of MEG: a first MEG-feasible fluxgate magnetometer

Koshev

Butorina

Skidchenko

et al. 2021

Preprint

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“…In the presence of H ext , a double frequency signal is detected. This configuration makes it possible to achieve a very small equivalent magnetic noise level of 100 fT/ √ Hz [65,70]. Recent developments of the fluxgate magnetometer have been directed towards miniaturization based on planar thin-film structures with a minimal magnetic noise level is about 0.1 nT/…”

Section: Magnetoresistance (Mr) Effectsmentioning

confidence: 99%

“…Hz [62][63][64] and even down to 100 fT/ √ Hz with the device based on epitaxial yttrium iron garnet films having a specially graded edge profile [65]. The detection signal frequency is in the low-frequency range (from 1 Hz to 100 Hz) which is suitable for the measurement of magnetocardiography, magnetoencephalography, and magnetomyography signals.…”

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confidence: 99%

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Ultrasensitive Magnetic Field Sensors for Biomedical Applications

Murzin

Mapps

Levada

et al. 2020

Sensors

169

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The development of magnetic field sensors for biomedical applications primarily focuses on equivalent magnetic noise reduction or overall design improvement in order to make them smaller and cheaper while keeping the required values of a limit of detection. One of the cutting-edge topics today is the use of magnetic field sensors for applications such as magnetocardiography, magnetotomography, magnetomyography, magnetoneurography, or their application in point-of-care devices. This introductory review focuses on modern magnetic field sensors suitable for biomedicine applications from a physical point of view and provides an overview of recent studies in this field. Types of magnetic field sensors include direct current superconducting quantum interference devices, search coil, fluxgate, magnetoelectric, giant magneto-impedance, anisotropic/giant/tunneling magnetoresistance, optically pumped, cavity optomechanical, Hall effect, magnetoelastic, spin wave interferometry, and those based on the behavior of nitrogen-vacancy centers in the atomic lattice of diamond.

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“…Sensors for measuring the magnetic field play a key role in many areas of today's science and technology. The areas of their application include space research [1], military applications and security systems [2,3], high-density magnetic memory [4], non-destructive testing [5], navigation [6], geology [7], medicine [8], current transformers [9], and many others [10]. The current total value of the magnetic field sensor market is estimated at about two billion U.S. dollars a year, of which the largest volume is associated with power equipment automation systems and car automation [11].…”

Section: Introductionmentioning

confidence: 99%

Novel Giant Magnetoimpedance Magnetic Field Sensor

Gazda

Szewczyk

2020

Sensors

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The idea, design, and tests of the novel GMI sensor are presented, based on the compensation measurement principle, where the local ‘zero-field’ minimum of the double-peak characteristic was utilized as a sensitive null detector. The compensation field was applied in real-time with the help of microprocessor-based, two-step, quasi-Newtonian optimization. The process of material parameters optimization through Joule-annealing of chosen amorphous alloys is described. The presented results of the prototype test unit show linear output characteristic, low measurement uncertainty, and resistance against time and temperature drift.

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Flux-gate magnetic field sensor based on yttrium iron garnet films for magnetocardiography investigations

Cited by 30 publications

References 14 publications

Evolution of MEG: a first MEG-feasible fluxgate magnetometer

Evolution of MEG: a first MEG-feasible fluxgate magnetometer

Ultrasensitive Magnetic Field Sensors for Biomedical Applications

Novel Giant Magnetoimpedance Magnetic Field Sensor

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