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Journal articles on the topic 'Inductive magnetometry'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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1

Kennewell, K. J., X. Ji, J. Hu, K. M. Krishnan, and R. L. Stamps. "Measuring exchange anisotropy in Fe∕MnPd using inductive magnetometry." Journal of Applied Physics 101, no. 9 (May 2007): 09E518. http://dx.doi.org/10.1063/1.2713231.

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2

Kennewell, K. J., D. C. Crew, M. J. Lwin, R. C. Woodward, S. Prasad, and R. L. Stamps. "Interpretation of magnetisation dynamics using inductive magnetometry in thin films." Surface Science 601, no. 24 (December 2007): 5766–69. http://dx.doi.org/10.1016/j.susc.2007.06.056.

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3

Magni, Alessandro, Oriano Bottauscio, Ambra Caprile, Federica Celegato, Enzo Ferrara, and Fausto Fiorillo. "Spin precession by pulsed inductive magnetometry in thin amorphous plates." Journal of Applied Physics 115, no. 17 (May 7, 2014): 17A338. http://dx.doi.org/10.1063/1.4867755.

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4

Kennewell, K. J., M. Kostylev, N. Ross, R. Magaraggia, R. L. Stamps, M. Ali, A. A. Stashkevich, D. Greig, and B. J. Hickey. "Magnetization pinning at a Py/Co interface measured using broadband inductive magnetometry." Journal of Applied Physics 108, no. 7 (October 2010): 073917. http://dx.doi.org/10.1063/1.3488618.

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5

Schneider, M. L., Th Gerrits, A. B. Kos, and T. J. Silva. "Gyromagnetic damping and the role of spin-wave generation in pulsed inductive microwave magnetometry." Applied Physics Letters 87, no. 7 (August 15, 2005): 072509. http://dx.doi.org/10.1063/1.2031944.

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6

Crew, D. C., K. J. Kennewell, M. J. Lwin, R. C. Woodward, S. Prasad, and R. L. Stamps. "Optic and acoustic modes measured in a cobalt/Permalloy exchange spring bilayer using inductive magnetometry." Journal of Applied Physics 97, no. 10 (May 15, 2005): 10A707. http://dx.doi.org/10.1063/1.1849551.

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7

Schneider, M. L., A. B. Kos, and T. J. Silva. "Dynamic anisotropy of thin Permalloy films measured by use of angle-resolved pulsed inductive microwave magnetometry." Applied Physics Letters 86, no. 20 (May 16, 2005): 202503. http://dx.doi.org/10.1063/1.1923193.

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8

Valentino, M., A. Ruosi, G. Pepe, V. Mollo, R. D'Alto, and G. Peluso. "Experimental Results in Eddy Current Non Destructive Testing Based on Superconductive and Conventional Electromagnetic Probes." International Journal of Modern Physics B 13, no. 09n10 (April 20, 1999): 1117–22. http://dx.doi.org/10.1142/s0217979299001053.

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This paper deals with the electromagentic nondestructive testing performed by SQUID magnetometry on stratified aluminum alloy plates as those commonly encountered in the aircraft industry. The anomalous magnetic fields generated by flaws with know electromagnetic characteristics have been modeled by a three-dimensional specific code based on a finite element formulation. The numerical solution has correctly predicted the shape of the complicated magnetic field response due to the defect. Once accuracy and reliability of experimental data taken by superconductive probe have been tested, a bench
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9

Morales, Irene, Marta Muñoz, Catia S. Costa, Jose Maria Alonso, João Miguel Silva, Marta Multigner, Mario Quijorna, M. Rosário Ribeiro, and Patricia de la Presa. "Induction Heating in Nanoparticle Impregnated Zeolite." Materials 13, no. 18 (September 10, 2020): 4013. http://dx.doi.org/10.3390/ma13184013.

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The ultra-stable Y (H-USY) zeolite is used as catalyst for the conversion of plastic feedstocks into high added value products through catalytic cracking technologies. However, the energy requirements associated with these processes are still high. On the other hand, induction heating by magnetic nanoparticles has been exploited for different applications such as cancer treatment by magnetic hyperthermia, improving of water electrolysis and many other heterogeneous catalytic processes. In this work, the heating efficiency of γ-Fe2O3 nanoparticle impregnated zeolites is investigated in order to
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10

Xue, Desheng, and Xiaolong Fan. "Comment on “Dynamic anisotropy of thin Permalloy films measured by use of angle-resolved pulsed inductive microwave magnetometry” [Appl. Phys. Lett. 86, 202503 (2005)]." Applied Physics Letters 90, no. 11 (March 12, 2007): 116101. http://dx.doi.org/10.1063/1.2713125.

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11

Nguyen, Thao A., Tadashi Yogi, and Steven E. Lambert. "The effect of sputtering pressure on microstructure and recording performance of high-density magnetic recording media." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 4 (August 1990): 770–71. http://dx.doi.org/10.1017/s0424820100176988.

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Understanding the magnetic properties of thin films applicable to high density recording requires detailed knowledge of the microstructure and microchemistry of the film. Interactions such as exchange and magnetostatic as well as anisotropies have been shown theoretically to influence the magnetic properties and recording characteristics of the media. These magnetic interactions and anisotropies are very sensitive to microstructure. This study reports the efTcct of sputtering pressure on the microstructurc and magnetic properties of thin CoPtCr films. The relation between the microstructural f
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12

Nica, Valentin, Carlos Caro, Jose Maria Páez-Muñoz, Manuel Pernia Leal, and Maria Luisa Garcia-Martin. "Bi-Magnetic Core-Shell CoFe2O4@MnFe2O4 Nanoparticles for In Vivo Theranostics." Nanomaterials 10, no. 5 (May 8, 2020): 907. http://dx.doi.org/10.3390/nano10050907.

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In this work, we report the synthesis and characterization of three magnetic nanosystems, CoFe2O4, CoFe2O4@ZnFe2O4, and CoFe2O4@MnFe2O4, which were developed as potential theranostic agents for magnetic hyperthermia and magnetic resonance imaging (MRI). These nanosystems have been thoroughly characterized by X-ray Diffraction (XRD), Transmission Electron Miscroscopy (TEM), Dark Field-TEM (DF-TEM), Vibrating Sample Magnetometry (VSM), and inductive heating, in order to elucidate their structure, morphology, and magnetic properties. The bi-magnetic CoFe2O4@ZnFe2O4 and CoFe2O4@MnFe2O4 nanoparticl
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13

Shi, Hongyu, Yanzhang Wang, and Jun Lin. "Optimized Design and Calibration of the Triaxis Induction Magnetometer with Crosstalk and Nonorthogonality Compensation." Journal of Sensors 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/1810636.

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An optimized triaxis induction magnetometer has been designed and calibrated to minimize the influences from the nonorthogonality and the magnetic flux crosstalk. Utilizing the nonlinear least square method, contributions due to the nonorthogonal assembly of three transducers are cancelled. The magnetic flux crosstalk is a frequency-dependent error component in the calibration of the triaxis induction magnetometer. Influences from the assembly density, the frequency, and the feedback amount are analyzed theoretically, and an optimized sensor configuration which has a smaller crosstalk is achie
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14

Han, Songtong, Xiaoli Rong, Leixiang Bian, Mingyou Zhong, and Lining Zhang. "The Application of Magnetometers and Electromagnetic Induction Sensors in UXO Detection." E3S Web of Conferences 131 (2019): 01045. http://dx.doi.org/10.1051/e3sconf/201913101045.

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This paper introduces the physical model of unexploded ordnance (UXO) in the magnetization process and the formula derivation of the magnetic dipole model. The application of magnetometers and electromagnetic induction sensors in the detection of UXO is introduced. The magnetometers introduce the total field measurements technology of the CS optical-pump marine magnetometer and the MagSTAR (Magnetic Scalar Triangulation and Ranging) gradient detection technology. The electromagnetic induction sensors introduce the working theories and the popular product models of Geophex company and Geonics L
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15

Russenschuck, S., G. Caiafa, L. Fiscarelli, M. Liebsch, C. Petrone, and P. Rogacki. "Challenges in extracting pseudo-multipoles from magnetic measurements." International Journal of Modern Physics A 34, no. 36 (December 11, 2019): 1942022. http://dx.doi.org/10.1142/s0217751x19420223.

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Extracting the coefficients of Fourier–Bessel series, known as pseudo-multipoles or generalized gradients, from magnetic measurements of accelerator magnets involves technical and mathematical challenges. First, a novel design of a short, rotating-coil magnetometer is required that does not intercept any axial field component of the magnet. Moreover, displacing short magnetometers, step-by-step along the magnet axis, yields a convolution of the local multipole field errors and the sensitivity (test function) of the induction coil. The deconvolution must then contend with the limited signal-to-
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16

Barak, Ohad, Kerry Key, Steven Constable, and Shuki Ronen. "Recording active-seismic ground rotations using induction-coil magnetometers." GEOPHYSICS 83, no. 5 (September 1, 2018): P19—P42. http://dx.doi.org/10.1190/geo2017-0281.1.

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Most of the current rotational sensing technology is not geared toward the recording of seismic rotations’ amplitudes and frequencies. There are few instruments that are designed for rotational seismology, and the technology for building them is currently being developed. There are no mass industrial producers of seismic rotation sensors as there are for geophones, and only one current sensor model can be deployed on the ocean bottom. We reviewed some current rotational-seismic acquisition technologies, and developed a new method of recording rotations using an existing, robust and field-deplo
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17

Safargaleev, V., A. Serebryanskaya, A. Koustov, M. Lester, E. Pchelkina, and A. Vasilyev. "A possible origin of dayside Pc1 magnetic pulsations observed at high latitudes." Annales Geophysicae 22, no. 8 (September 7, 2004): 2997–3008. http://dx.doi.org/10.5194/angeo-22-2997-2004.

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Abstract. Induction magnetometer observations of dayside Pc1 activity at Barentsburg (BAB, Spitsbergen archipelago, 78.05°N, 14.12°E) are combined with data from two magnetometers located in Scandinavia and the Kola peninsula. Seven events with very large negative IMF Bz components were considered. For all of the events, the cusp location was expected to be significantly shifted equatorward from the statistical position such that the BAB magnetometer was located well inside the polar cap. The DMSP particle data indicated that the BAB magnetometer was indeed inside the polar cap, whereas other
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18

Yang, Jidong J., and Bashan Zuo. "Performance of Wireless Magnetometers for Stop Bar Detection at Signalized Intersections." Transportation Research Record: Journal of the Transportation Research Board 2672, no. 45 (August 29, 2018): 55–63. http://dx.doi.org/10.1177/0361198118796068.

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Wireless magnetometers have been considered as a practical alternative to inductive loops and suitable for large intersections, where span wire is generally used for traffic signal support. In this paper, wireless magnetometers are evaluated for stop bar vehicle detection at signalized intersections. High-resolution detector data were collected in the field subjected to various weather and environmental conditions. Conditional inference trees were used to correlate detection errors with weather and environmental factors that potentially affect the performance of wireless magnetometers. The stu
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19

Wolfgram, P. A., R. N. Edwards, L. K. Law, and M. N. Bone. "Polymetallic sulfide exploration on the deep sea floor: The feasibility of the MINI‐MOSES experiment." GEOPHYSICS 51, no. 9 (September 1986): 1808–18. http://dx.doi.org/10.1190/1.1442227.

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The recent discoveries of polymetallic sulfide deposits on the deep sea floor have created an interest in geophysical techniques for mapping them. A magnetometric resistivity method (MINI‐MOSES) has been developed for detecting the distribution of sub‐sea‐floor electrical resistivity. A vertical, long‐wire bipole feeds electric current into the ocean. Some of the current enters the sea floor, and its magnetic field is measured at various distances by a low‐frequency induction coil magnetometer. The method is sensitive to conductive and resistive zones at depth, and information about three‐dime
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20

Kos, Anthony B., Thomas J. Silva, and Pavel Kabos. "Pulsed inductive microwave magnetometer." Review of Scientific Instruments 73, no. 10 (October 2002): 3563–69. http://dx.doi.org/10.1063/1.1505657.

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21

Leonov, M., and Yu Otruba. "Measurement of the difference in the geomagnetic induction between the magnetometer pillars of the geomagnetic observatory of the Ukrainian Antarctic Akademik Vernadsky station." Ukrainian Antarctic Journal, no. 1 (2021): 16–23. http://dx.doi.org/10.33275/1727-7485.1.2021.662.

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The article describes the features of measurements of spatial inhomogeneities of the geomagnetic field between the pillars of magnetometers in the measuring pavilion, which were carried out at the geomagnetic observatory of the Ukrainian Antarctic Akademik Vernadsky station in 2015. Some preliminary results of these measurements are also given. The concept of the timescaled value of the geomagnetic field induction is introduced, which is convenient for compensating for time changes of the real geomagnetic induction and bringing it to one reference level of induction. The differences in geomagn
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22

Coillot, C., J. Moutoussamy, G. Chanteur, P. Robert, and F. Alves. "On-board hybrid magnetometer of NASA CHARM-II rocket: principle, design and performances." Journal of Sensors and Sensor Systems 2, no. 2 (August 6, 2013): 137–45. http://dx.doi.org/10.5194/jsss-2-137-2013.

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Abstract. We present a hybrid tri-axes magnetometer designed to measure weak magnetic fields in space from DC (direct current) up to a few kHz with a better sensitivity than fluxgate magnetometers at frequencies above a few Hz. This magnetometer combines a wire-wound ferromagnetic ribbon and a classical induction sensor. The nature of the wire-wound ferromagnetic ribbon sensor, giant magneto-impedance or magneto-inductance, is discussed. New configurations of wire-wound ferromagnetic ribbon sensors based on closed magnetic circuits are suggested and the hybrid sensor is described. The electron
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23

Kos, A. B., J. P. Nibarger, R. Lopusnik, T. J. Silva, and Z. Celinski. "Cryogenic pulsed inductive microwave magnetometer." Journal of Applied Physics 93, no. 10 (May 15, 2003): 7068–70. http://dx.doi.org/10.1063/1.1543125.

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24

Sklyar, R. "Superconducting induction magnetometer." IEEE Sensors Journal 6, no. 2 (April 2006): 357–64. http://dx.doi.org/10.1109/jsen.2006.870167.

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25

Brunke, Heinz-Peter, Rudolf Widmer-Schnidrig, and Monika Korte. "Merging fluxgate and induction coil data to produce low-noise geomagnetic observatory data meeting the INTERMAGNET definitive 1 s data standard." Geoscientific Instrumentation, Methods and Data Systems 6, no. 2 (November 9, 2017): 487–93. http://dx.doi.org/10.5194/gi-6-487-2017.

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Abstract. For frequencies above 30 mHz the instrument intrinsic noise level of typical fluxgate magnetometers used at geomagnetic observatories usually masks ambient magnetic field variations on magnetically quiet days. This is especially true for stations located at middle and low latitudes, where variations are generally smaller than at high latitudes. INTERMAGNET has set a minimum quality standard for definitive 1 s data. Natural field variations referred to as pulsations (Pc-1, Pc-2, Pi-1) fall in this band. Usually their intensity is so small that they rarely surpass the instrumental nois
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26

Cutler, J., J. Bortnik, C. Dunson, J. Doering, and T. Bleier. "CalMagNet – an array of search coil magnetometers monitoring ultra low frequency activity in California." Natural Hazards and Earth System Sciences 8, no. 2 (April 15, 2008): 359–68. http://dx.doi.org/10.5194/nhess-8-359-2008.

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Abstract. The California Magnetometer Network (CalMagNet) consists of sixty-eight triaxial search-coil magnetometer systems measuring Ultra Low Frequency (ULF), 0.001–16 Hz, magnetic field fluctuations in California. CalMagNet provides data for comprehensive multi-point measurements of specific events in the Pc 1–Pc 5 range at mid-latitudes as well as a systematic, long-term study of ULF signals in active fault regions in California. Typical events include geomagnetic micropulsations and spectral resonant structures associated with the ionospheric Alfvén resonator. This paper provides a techni
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27

Billings, Stephen D., Leonard R. Pasion, Laurens Beran, Nicolas Lhomme, Lin-Ping Song, Douglas W. Oldenburg, Kevin Kingdon, David Sinex, and Jon Jacobson. "Unexploded ordnance discrimination using magnetic and electromagnetic sensors: Case study from a former military site." GEOPHYSICS 75, no. 3 (May 2010): B103—B114. http://dx.doi.org/10.1190/1.3377009.

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In a study at a military range with the objective to discriminate potentially hazardous [Formula: see text] mortars from nonhazardous shrapnel, range, and cultural debris, six different discrimination techniques were tested using data from an array of magnetometers, a time-domain electromagnetic induction (EMI) cart, an array of time-domain sensors, and a time-domain EMI cart with a wider measurement bandwidth. Discrimination was achieved using rule-based or statistical classification of feature vectors extracted from dipole or polarization tensor models fit to detected anomalies. For magnetic
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28

Reid, James E., and James C. Macnae. "Resistive limit modeling of airborne electromagnetic data." GEOPHYSICS 67, no. 2 (March 2002): 492–500. http://dx.doi.org/10.1190/1.1468609.

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When a confined conductive target embedded in a conductive host is energized by an electromagnetic (EM) source, current flow in the target comes from both direct induction of vortex currents and current channeling. At the resistive limit, a modified magnetometric resistivity integral equation method can be used to rapidly model the current channeling component of the response of a thin-plate target energized by an airborne EM transmitter. For towed-bird transmitter–receiver geometries, the airborne EM anomalies of near-surface, weakly conductive features of large strike extent may be almost en
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29

Koprivica, Branko, Marko Sucurovic, and Alenka Milovanovic. "Calibration of ac induction magnetometer." Facta universitatis - series: Electronics and Energetics 31, no. 4 (2018): 613–26. http://dx.doi.org/10.2298/fuee1804613k.

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The aim of this paper is to describe a procedure and experimental setup for calibration of AC induction magnetometer. The paper presents an overview of the previous research and results of measurement of magnetic flux density inside large diameter multilayer solenoid. This solenoid is magnetising coil of the magnetometer. The paper also describes a system of five smaller coils of the magnetometer which are placed inside the large solenoid. Three small coils are pickup coils, accompanied with two compensation coils, of which one is an empty coil for magnetic field measurement. The experimental
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30

Kapustin, G. A. "High-sensitivity inductive magnetometer for pulsed magnetic fields." Review of Scientific Instruments 70, no. 1 (January 1999): 82–84. http://dx.doi.org/10.1063/1.1149544.

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31

Prance, R. J., T. D. Clark, and H. Prance. "Compact broadband gradiometric induction magnetometer system." Sensors and Actuators A: Physical 76, no. 1-3 (August 1999): 117–21. http://dx.doi.org/10.1016/s0924-4247(98)00363-x.

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32

Tashiro, K., S. Inoue, H. Wakiwaka, H. Yasui, and H. Kinoshita. "Induction Magnetometer in MHz Range Operation." Sensor Letters 11, no. 1 (January 1, 2013): 153–56. http://dx.doi.org/10.1166/sl.2013.2801.

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33

Пилипенко, Вячеслав, Vyacheslav Pilipenko, Ольга Козырева, Olga Kozyreva, Евгений Федоров, Eugeny Fedorov, Михаил Успенский, Mikhail Uspensky, Кирсти Кауристи, and Kirsti Kauristie. "Latitudinal amplitude-phase structure of MHD waves: STARE radar and image magnetometer observations and modeling." Solar-Terrestrial Physics 2, no. 3 (October 27, 2016): 56–73. http://dx.doi.org/10.12737/22285.

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We have developed a numerical model that yields a steady-state distribution of field components of MHD wave in an inhomogeneous plasma box simulating the realistic magnetosphere. The problem of adequate boundary condition at the ionosphere–magnetosphere interface for coupled MHD mode is considered. To justify the model’s assumptions, we have derived the explicit inequality showing when the ionospheric inductive Hall effect can be neglected upon the consideration of Alfven wave reflection from the ionospheric boundaries. The model predicts a feature of the ULF spatial amplitude/phase distributi
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34

Grosz, Asaf, Eugene Paperno, Shai Amrusi, and Tal Szpruch. "Minimizing crosstalk in three-axial induction magnetometers." Review of Scientific Instruments 81, no. 12 (December 2010): 125106. http://dx.doi.org/10.1063/1.3509392.

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35

Dorfbauer, F., T. Schrefl, D. Suess, M. Kirschner, G. Hrkac, and J. Fidler. "Pulsed inductive microwave magnetometer response calculated for IrMn/FeNi bilayers." European Physical Journal B 45, no. 2 (May 2005): 267–71. http://dx.doi.org/10.1140/epjb/e2005-00179-2.

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36

Davydov, V. V., V. I. Dudkin, and V. A. Vologdin. "Nuclear-resonance magnetometer with flowing liquid for superstrong inhomogeneous fields measuring." International Journal of Modern Physics: Conference Series 41 (January 2016): 1660146. http://dx.doi.org/10.1142/s2010194516601460.

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Multichannel nuclear-resonance magnetometer for remote monitoring of induction and heterogeneity of a magnetic field in different areas inside and near a charged particle accelerator is considered. The maximal distance between the nuclear magnetic resonance signal detector and the magnetometer is 50 m. Measurement error is 0.5%, sensitivity of the magnetometer is 10[Formula: see text] T/Hz[Formula: see text], measurement time of the magnetic field parameters in 24 control points is no more than 4 minutes.
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37

Lee, James B., David L. Dart, Robert J. Turner, Mark A. Downey, Arthur Maddever, Goran Panjkovic, Catherine P. Foley, et al. "Airborne TEM surveying with a SQUID magnetometer sensor." GEOPHYSICS 67, no. 2 (March 2002): 468–77. http://dx.doi.org/10.1190/1.1468606.

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Traditionally airborne time-domain electromagnetic (AEM) survey systems use induction coils as the sensor (receiver). We have replaced the induction coil in a transient electromagnetic (TEM) system with a liquid-nitrogen cooled superconducting quantum interference device (SQUID) magnetometer sensor. Using this prototype system, we aimed to improve performance in detecting conductive mineralization, particularly where the conductive mineralization of interest is covered by a conductive regolith. We successfully demonstrated one- and three-component SQUID sensors in airborne TEM surveying, and a
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38

Paperno, E., A. Grosz, S. Amrusi, and B. Zadov. "Compensation of Crosstalk in Three-Axial Induction Magnetometers." IEEE Transactions on Instrumentation and Measurement 60, no. 10 (October 2011): 3416–22. http://dx.doi.org/10.1109/tim.2011.2124850.

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39

Sasada, Ichiro. "Induction magnetometer using a high-Tc superconductor coil." Journal of Applied Physics 107, no. 9 (May 2010): 09E721. http://dx.doi.org/10.1063/1.3360770.

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40

Duan, Haibin, and Qinan Luo. "Adaptive Backtracking Search Algorithm for Induction Magnetometer Optimization." IEEE Transactions on Magnetics 50, no. 12 (December 2014): 1–6. http://dx.doi.org/10.1109/tmag.2014.2342192.

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41

Yan, Bin, Wanhua Zhu, Xin Zhuang, Leisong Liu, and Guangyou Fang. "Miniature Three-Axis Induction Magnetometer for Borehole Logging." IEEE Magnetics Letters 10 (2019): 1–4. http://dx.doi.org/10.1109/lmag.2019.2955058.

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42

Bevington, P., R. Gartman, and W. Chalupczak. "Inductive Imaging of the Concealed Defects with Radio-Frequency Atomic Magnetometers." Applied Sciences 10, no. 19 (September 30, 2020): 6871. http://dx.doi.org/10.3390/app10196871.

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We explore the capabilities of the radio-frequency atomic magnetometers in the non-destructive detection of concealed defects. We present results from the systematic magnetic inductive measurement of various defect types in an electrically conductive object at different rf field frequencies (0.4–12 kHz) that indicate the presence of an optimum operational frequency of the sensor. The optimum in the frequency dependence of the amplitude/phase contrast for defects under a 0.5–1.5 mm conductive barrier was observed within the 1–2 kHz frequency range. The experiments are performed in the self-comp
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43

Henrard, Daniel, Quoc Lam Vuong, Sébastien Delangre, Xavier Valentini, Denis Nonclercq, Maurice François Gonon, and Yves Gossuin. "Monitoring of Superparamagnetic Particle Sizes in the Langevin Law Regime." Journal of Nanomaterials 2019 (November 19, 2019): 1–9. http://dx.doi.org/10.1155/2019/6409210.

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In this work, aqueous solutions of magnetite nanoparticles (NPs) are studied. Magnetite NPs are very useful in biomedicine for magnetic resonance imaging (MRI), for drug delivery therapy, and also for hyperthermia. In order to predict the NP efficiency in these applications, it is crucial to accurately characterize their size distribution and their magnetization. Magnetometry, through the dependence of NP magnetization on the magnetic induction (MB curve), can provide interesting information on these physical properties. In this work, the extraction of the NP size distribution and magnetizatio
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44

Hatsukade, Yoshimi, K. Noda, S. Masaki, S. Yoshida, and Saburo Tanaka. "Multi-Channel High-Tc SQUID System for Bio-Applications." Solid State Phenomena 152-153 (April 2009): 424–27. http://dx.doi.org/10.4028/www.scientific.net/ssp.152-153.424.

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high-Tc SQUID, magnetometer, bio-magnetism, multi-channel, rat MCG. Abstract. Three-channel directly-coupled-type high-Tc SQUID magnetometer array, with pick-up coil size of 1.5 mm2 comparable to the lift-off distance of the developed multi-channel SQUID system, was designed. In this design, two slits were introduced in the SQUID ring to improve the inductive coupling between the pick-up coil and the SQUID ring to obtain the field sensitivity of about 700 fT/Hz1/2. With the SQUID array that was mounted on the multi-channel SQUID system, the measurements of magnetocardiogram of rat were demonst
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Shifrin, Vladlen Ya, Denis I. Belyakov, Alexander E. Shilov, and Denis D. Kosenko. "Research on expanding the range of reproduction of magnetic flux density of the DC field of the state primary standard GET12-2011." Izmeritel`naya Tekhnika, no. 4 (April 2020): 3–7. http://dx.doi.org/10.32446/0368-1025it.2020-4-3-7.

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The results of works aimed at increasing the level of uniformity of measurements of the magnetic induction of a constant field – the basic value in the field of magnetic measurements. A set of equipment for reproducing a unit of magnetic induction of a constant field in the range of 1–25 mT was created and described. The inclusion of this complex in the State primary standard of units of magnetic induction, magnetic flux, magnetic moment and magnetic induction gradient GET 12-2011 will ensure the reproduction and direct transmission of the unit of permanent magnetic induction in the ranges of
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46

Coillot, C., M. El Moussalim, E. Brun, A. Rhouni, R. Lebourgeois, G. Sou, and M. Mansour. "Magnetic noise contribution of the ferromagnetic core of induction magnetometers." Journal of Sensors and Sensor Systems 4, no. 1 (June 18, 2015): 229–37. http://dx.doi.org/10.5194/jsss-4-229-2015.

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Abstract. The performance of induction magnetometers, in terms of resolution, depends both on the induction sensor and the electronic circuit. To investigate accurately the sensor noise sources, an induction sensor, made of a ferrite ferromagnetic core, is combined with a dedicated low voltage and current noise preamplifier, designed in CMOS 0.35 μm technology. A modelling of the contribution of the ferromagnetic core to the noise through the complex permeability formalism is performed. Its comparison with experimental measurements highlight another possible source for the dominating noise nea
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Gawrylczyk, Konstanty. "Electromagnetic methods in nondestructive testing of materials." Facta universitatis - series: Electronics and Energetics 16, no. 1 (2003): 1–23. http://dx.doi.org/10.2298/fuee0301001g.

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The article deals with progress in electromagnetic methods used for quality evaluation of conducting materials. The term "electromagnetic methods" covers the following areas: magneto-inductive methods, magnetic leakage flux probe method, magnetometer principle and eddy-current methods. For the aim of numerical cracks recognition the sensitivity analysis with finite elements was shown.
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Bleier, T., C. Dunson, C. Alvarez, F. Freund, and R. Dahlgren. "Correlation of pre-earthquake electromagnetic signals with laboratory and field rock experiments." Natural Hazards and Earth System Sciences 10, no. 9 (September 24, 2010): 1965–75. http://dx.doi.org/10.5194/nhess-10-1965-2010.

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Abstract. Analysis of the 2007 M5.4 Alum Rock earthquake near San José California showed that magnetic pulsations were present in large numbers and with significant amplitudes during the 2 week period leading up the event. These pulsations were 1–30 s in duration, had unusual polarities (many with only positive or only negative polarities versus both polarities), and were different than other pulsations observed over 2 years of data in that the pulse sequence was sustained over a 2 week period prior to the quake, and then disappeared shortly after the quake. A search for the underlying physics
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Marmugi, Luca, and Ferruccio Renzoni. "Electromagnetic Induction Imaging with Atomic Magnetometers: Progress and Perspectives." Applied Sciences 10, no. 18 (September 13, 2020): 6370. http://dx.doi.org/10.3390/app10186370.

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Electromagnetic induction imaging (EMI) allows mapping of the conductivity of target objects and, when combined with appropriate algorithms, the generation of full 3D tomographic images. Despite its tremendous potential, and the wealth of possible applications, the use of EMI has essentially been limited to eddy current testing for monitoring of corrosion and welding in metallic structures. The present work reviews the factors hindering the progress of electromagnetic induction imaging and highlights how the use of atomic magnetometers overcame some of them, opening the path to real world appl
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Pinçon, Jean-Louis, Michel Menvielle, and Laszlo Szarka. "Geomagnetic induction study using the NetLander network of magnetometers." Planetary and Space Science 48, no. 12-14 (October 2000): 1261–70. http://dx.doi.org/10.1016/s0032-0633(00)00108-2.

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