Experimental investigation of magnetic field near strip conductors with rectangle cut-out

2016 ◽  
Author(s):  
Муравьев ◽  
A. Muravev ◽  
Поляков ◽  
Petr Polyakov ◽  
Герасименко ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Experimental Investigation ◽  
Defect Detection ◽  
Theoretical Calculations ◽  
Theoretical Distribution ◽  
Experimental Results ◽  
Strip Conductor ◽  
Hall Sensors

A theoretical distribution of magnetic field generated by strip conductors of different widths close to a rectangular cutout is derived. An experimental investigation of strip conductor magnetic field with magnetoresistive and Hall sensors based devices is presented. The experimental results fit the theoretical calculations. A method of conductor defect detection using appliances based on the sensors was developed.

Experimental investigation of multi-mode dynamics of THz-band pulsed magnetic field gyrotron

2020 ◽  
Author(s):  
A. V. Palitsin ◽  
Yu. V. Rodin ◽  
A. G. Luchinin ◽  
A. N. Panin ◽  
A. V. Gromov ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Experimental Investigation ◽  
Pulsed Magnetic Field ◽  
Multi Mode

scholarly journals Colossal anomalous Nernst effect in a correlated noncentrosymmetric kagome ferromagnet

2021 ◽  
Vol 7 (13) ◽  
pp. eabf1467
Author(s):  
T. Asaba ◽  
V. Ivanov ◽  
S. M. Thomas ◽  
S. Y. Savrasov ◽  
J. D. Thompson ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electronic Structure ◽  
Theoretical Calculations ◽  
Zero Magnetic Field ◽  
Nernst Effect ◽  
Nodal Lines ◽  
Transverse Response ◽  
Narrow Bands ◽  
Strong Spin ◽  
Anomalous Nernst Effect

The transverse voltage generated by a temperature gradient in a perpendicularly applied magnetic field, termed the Nernst effect, has promise for thermoelectric applications and for probing electronic structure. In magnetic materials, an anomalous Nernst effect (ANE) is possible in a zero magnetic field. We report a colossal ANE in the ferromagnetic metal UCo0.8Ru0.2Al, reaching 23 microvolts per kelvin. Uranium’s 5f electrons provide strong electronic correlations that lead to narrow bands, a known route to producing a large thermoelectric response. In addition, uranium’s strong spin-orbit coupling produces an intrinsic transverse response in this material due to the Berry curvature associated with the relativistic electronic structure. Theoretical calculations show that in UCo0.8Ru0.2Al at least 148 Weyl nodes, and two nodal lines, exist within 60 millielectron volt of the Fermi level. This work demonstrates that magnetic actinide materials can host strong Nernst and Hall responses due to their combined correlated and topological nature.

Results of an experimental investigation of heat transfer in the discharge chamber of a plasma generator with a magnetic field and a vortical gas flow acting on the arc

1967 ◽  
Vol 13 (2) ◽  
pp. 77-80 ◽  
Author(s):  
M. B. Andryushkevich ◽  
E. A. Borovchenko ◽  
A. P. Iskrenkov ◽  
V. V. Toropov ◽  
L. I. Sharakhovskii
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Experimental Investigation ◽  
Gas Flow ◽  
Discharge Chamber ◽  
Plasma Generator

Design and Fabrication of a Magnetocaloric Microcooler

2005 ◽  
Author(s):  
Sangchae Kim ◽  
Bharath Bethala ◽  
Simone Ghirlanda ◽  
Senthil N. Sambandam ◽  
Shekhar Bhansali
Keyword(s):  
Magnetic Field ◽  
Ambient Temperature ◽  
Temperature Change ◽  
Entropy Change ◽  
Temperature Sensors ◽  
Experimental Results ◽  
Maximum Temperature ◽  
Alternative Technology ◽  
Temperature Conditions ◽  
Si Wafer

Magnetocaloric refrigeration is increasingly being explored as an alternative technology for cooling. This paper presents the design and fabrication of a micromachined magnetocaloric cooler. The cooler consists of fluidic microchannels (in a Si wafer), diffused temperature sensors, and a Gd5(Si2Ge2) magnetocaloric refrigeration element. A magnetic field of 1.5 T is applied using an electromagnet to change the entropy of the magnetocaloric element for different ambient temperature conditions ranging from 258 K to 280 K, and the results are discussed. The tests show a maximum temperature change of 7 K on the magnetocaloric element at 258 K. The experimental results co-relate well with the entropy change of the material.

Experimental Study of Magnetic Field Variation Induced in Ferromagnetic Materials

2013 ◽  
Vol 312 ◽  
pp. 402-405
Author(s):  
Yang Yong ◽  
Dong Sun ◽  
Jie Ji
Keyword(s):  
Magnetic Field ◽  
Plastic Region ◽  
Steel Specimen ◽  
Fatigue Tests ◽  
Experimental Results ◽  
Magnetic Memory ◽  
Field Variation ◽  
Magnetic Field Variation ◽  
Metal Magnetic Memory ◽  
Stress Increase

The fatigue tests on 15CrMo steel specimen were carried out and the metal magnetic memory (MMM) signals were detected. The experiment shows that the magnetic signals of specimen contain the information of stress distribution in the material inside. Furthermore, the experimental results show that the magnetic signals increase initial while then decrease slightly with the stress increase from 0kN to 200kN. Though analysis the MMM signals induced by different tensile stress within the plastic region of the specimen, a simple model was derived. The experimental results are consistent with the calculated results based on the Jiles-Atherton model.

Experimental investigation on thermo hydraulic performance of ferronanofluid flow in a dimpled tube under magnetic field effect

2022 ◽  
pp. 1-19
Author(s):  
Mehmet Gürdal ◽  
Hayati Kadir Pazarlıoğlu ◽  
Mutlu Tekir ◽  
Kamil Arslan ◽  
Engin Gedik ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Experimental Investigation ◽  
Field Effect ◽  
Magnetic Field Effect ◽  
Hydraulic Performance

scholarly journals A Feasibility Study of a Noncontact Torque Sensor with Multiple Hall Sensors

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Kyungshik Lee ◽  
Chongdu Cho
Keyword(s):  
Magnetic Field ◽  
Permanent Magnets ◽  
Power Transmission ◽  
Magnetic Sensors ◽  
Torque Sensor ◽  
Torque Measurement ◽  
Test Range ◽  
Variable Power ◽  
Hall Sensors ◽  
The Magnetic Field

The feasibility of a noncontact sensor is investigated. This type of sensor can potentially be used for torque measurement in a speed-variable power transmission system. Torque can be read by examining the phase difference between two induction signals from respective magnetic sensors that detect the magnetic field intensity of permanent magnets mounted on the surface of a shaft in rotation. A real-time measuring algorithm that includes filtering and calibration is adopted to measure the torque magnitude. It is shown that this new torque sensor can perform well under rotation speeds ranging from 300 rpm to 500 rpm. As an interim report rather than a complete development, this work demonstrates the feasibility of noncontact torque measurement by monitoring a magnetic field. The result shows an error of less than 2% within the full test range, which is a sufficient competitive performance for commercial sensors. The price is very low compared to competitors in the marketplace, and the device does not require special handling of the shaft of the surface.

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