Magnetic detector bands for interior 3D-analyses of laminated machine cores

2018 ◽  
Vol 56 (4) ◽  
pp. 585-594
Author(s):  
Helmut Pfützner ◽  
Georgi Shilyashki ◽  
Andreas Windischhofer
Keyword(s):  
Magnetic Detector

scholarly journals Novel Benchtop Magnetic Particle Spectrometer for Process Monitoring of Magnetic Nanoparticle Synthesis

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2277
Author(s):  
Norbert Löwa ◽  
Dirk Gutkelch ◽  
Ernst-Albrecht Welge ◽  
Roland Welz ◽  
Florian Meier ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Nanoparticles ◽  
Process Monitoring ◽  
Magnetic Nanoparticle ◽  
Magnetic Particle ◽  
Nanoparticle Synthesis ◽  
Separation Processes ◽  
Magnetic Detector ◽  
Application Fields

Magnetic nanoparticles combine unique magnetic properties that can be used in a variety of biomedical applications for therapy and diagnostics. These applications place high demands on the magnetic properties of nanoparticles. Thus, research, development, and quality assurance of magnetic nanoparticles requires powerful analytical methods that are capable of detecting relevant structural and, above all, magnetic parameters. By directly coupling nanoparticle synthesis with magnetic detectors, relevant nanoparticle properties can be obtained and evaluated, and adjustments can be made to the manufacturing process in real time. This work presents a sensitive and fast magnetic detector for online characterization of magnetic nanoparticles during their continuous micromixer synthesis. The detector is based on the measurement of the nonlinear dynamic magnetic response of magnetic nanoparticles exposed to an oscillating excitation at a frequency of 25 kHz, a technique also known as magnetic particle spectroscopy. Our results underline the excellent suitability of the developed magnetic online detection for coupling with magnetic nanoparticle synthesis based on the micromixer approach. The proven practicability and reliability of the detector for process monitoring forms the basis for further application fields, e.g., as a monitoring tool for chromatographic separation processes.

scholarly journals Optimization of the Sensitivity of a Double-Dot Magnetic Detector

Electronics ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 1134 ◽  
Author(s):  
Massimo Macucci ◽  
Paolo Marconcini ◽  
Stephan Roche
Keyword(s):  
Magnetic Field ◽  
Flicker Noise ◽  
Electron Gas ◽  
High Mobility ◽  
Enhancement Effect ◽  
Dimensional Electron ◽  
Constructive Interference ◽  
Perfect Symmetry ◽  
Dimensional Electron Gas ◽  
Magnetic Detector

We investigate, by means of numerical simulations, the lowest magnetic field level that can be detected with a given relative accuracy with a sensor based on a double-dot device fabricated in a high-mobility two-dimensional electron gas. The double dot consists of a cavity delimited by an input and an output constriction, with a potential barrier exactly in the middle. In conditions of perfect symmetry, a strong conductance enhancement effect appears as a consequence of the constructive interference between symmetric trajectories. When the symmetry is broken, for example by the presence of an applied magnetic field, this enhancement effect is suppressed. We explore the design parameter space and assess the minimum magnetic field value that can be measured with a given accuracy in the presence of flicker noise.

The magnetic properties of a magnetic detector using oxidized amorphous Co95−xFe5(BSi)x alloys

2000 ◽  
Vol 217 (1-3) ◽  
pp. 159-169 ◽  
Author(s):  
S.J Ahn ◽  
C.K Kim ◽  
S.J Kim ◽  
D.K Choi ◽  
R.C O'Handley
Keyword(s):  
Magnetic Properties ◽  
Magnetic Detector

Safe airport operation based on innovative magnetic detector system

2009 ◽  
Vol 3 (2) ◽  
pp. 236 ◽  
Author(s):  
H. Gao ◽  
Th. Heuer ◽  
K. Dimitropoulos ◽  
N. Grammalidis ◽  
M. Weinmann ◽  
...  
Keyword(s):  
Detector System ◽  
Magnetic Detector

Magnetic detector for projectiles in tubes

AIAA Journal ◽  
1990 ◽  
Vol 28 (11) ◽  
pp. 1942-1944 ◽  
Author(s):  
D. W. Bogdanoff ◽  
C. Knowlen ◽  
D. Murakami ◽  
I. Stonich
Keyword(s):  
Magnetic Detector

scholarly journals Magnetic Detector Using Bi-Pb-Sr-Ca-Cu-O Superconductive Film.

1991 ◽  
Vol 38 (8) ◽  
pp. 1027-1030
Author(s):  
Keizou Tsukamoto ◽  
Hiromasa Shimojima ◽  
Mamoru Ishii ◽  
Chitake Yamagishi
Keyword(s):  
Magnetic Detector

scholarly journals I. A magnetic detector of electrical waves and some of its applications

1897 ◽  
Vol 189 ◽  
pp. 1-24 ◽  
Keyword(s):  
High Frequency ◽  
Wide Range ◽  
The Subject ◽  
Magnetic Detector

The present paper deals with the subject of the magnetization of iron by high-frequency discharges, and the uses of magnetized steel needles for detecting and measuring currents of very great rapidity of alternation. It will be shown that these magnetic detectors offer a very simple means of investigating many of the phenomena connected with high-frequency discharges, and may be used over a wide range of periods of alternation. Not only may these detectors be used in ordinary Leyden jar circuits, but they also offer a sensitive means of investigating waves along wires and free vibrating circuits of short wavelengths.

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