Wyniki wyszukiwania dla: DISC, MAGNETIC FIELD

• Multidipoles model of ship's magnetic field

  Publikacja

  • K. Jakubiuk
  • P. Zimny
  • M. Wołoszyn

  - Rok 2011

  Ships made of ferromagnetic metals interfere with Earth's magnetic field in their surrounding. The disturbance of the magnetic field makes possible localization and even identification of the ship, which could determine a threat to the ship. The measurement of the magnetic field around the ship enables to determine its magnetic signature. The paper presents a multidipoles model of the ship magnetic field, which allows to determine...

• Multidipoles model of ship's magnetic field

  Publikacja

  • M. Wołoszyn
  • P. Zimny
  • K. Jakubiuk

  - INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS - Rok 2012

  Ships made of ferromagnetic metals interfere with Earth's magnetic field in their surrounding. The disturbance of the magnetic field makes possible localization and even identification of the ship, which could determine a threat to the ship. The measurement of the magnetic field around the ship enables to determine its magnetic signature. The paper presents a multidipoles model of the ship magnetic field, which allows to determine...

• Analysis of magnetic field of Helmholtz's coils

  Publikacja

  • M. Wołoszyn
  • J. Wołoszyn
  • A. Młyński

  - Rok 2007

  The 3-axis fluxgate magnetometer requires conducting a precise calibration in the magnetic field whose value is determined and which is characterized by the high uniformity of the distribution of the field, especially along the axis of the sensors. The generation of the magnetostatic field characterized by the high uniformity, can be achieved by using the Helmholtz's coils. The requirements of the uniformity of distribution of...

• Short-fuse arc in the magnetic field

  Publikacja

  • A. Wolny
  • M. Pikoń

  - Rok 2005

  Do wymuszenia przerzutu prądu z bezpiecznika krótkotopikowego o dużym prądzie znamionowym, lecz małej zdolności wyłączania do do innego - o małym prądzie znamionowym, lecz dużej zdolności wyłączania konieczne jest wytworzenie przez bezpiecznik krótkotopikowy wysokiego napięcia łukowego. Do tego celu bezpiecznik z topikiem o długości 1 mm wyposażono w rożki łukowe i płykową komorę dejonizacyjną oraz zastosowano zewnętrzne pole...

• Research of leakage magnetic field in deenergized transformer

  Publikacja

  • J. Horiszny

  - COMPEL-THE INTERNATIONAL JOURNAL FOR COMPUTATION AND MATHEMATICS IN ELECTRICAL AND ELECTRONIC ENGINEERING - Rok 2018

  The article deals with the issue of the numerical analysis of the magnetic field occurring around the transformer after it has been powered down. The main goal of this analysis was to examine if it is possible to identify the residual fluxes in the transformer legs based on this fields’ measurements. It was also intended to determine the type and the location of magnetic sensors. Numerical analysis of the magnetic field was performed....

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• Performance of lubricated sliding contact in magnetic field

  Publikacja

  • T. Stolarski
  • Y. Makida

  - TRIBOLOGY LETTERS - Rok 2012

  Results of experimental studies concerning theinfluence of permanent magnetic field on wear of lubricatedsliding contact operating at short stroke and highfrequency are presented. It was found that horizontalmagnetic is affecting performance of the contact. Thejagged delamination regions produced in the presence of amagnetic field can be regarded as easily undergoing oxidisationbecause oxygen is readily adsorbed there. Magneticfield...

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• Magnetic field microsensor based on GaAs MESFET

  Publikacja

  • W. Kordalski
  • B. Boratyński
  • M. Panek
  • B. Ściana
  • I. Zborowska-Lindert
  • M. Tłaczała

  - Rok 2007

  A novel concept of the drain separation design in a horizontally-split-drain GaAs MAGFET sensor, based on epitaxial layer growth, was developed. Proper choice of GaAs/AlAs/GaAs epitaxial layer sequence provided good electrical isolation between the drain regions. The measured leakage current between the drain regions was in the range of nA for up to 2V drain voltage bias difference. Performed analytical and numerical calculations...

• Influence of plastic deformation on stray magnetic field distribution of soft magnetic steel sample

  Publikacja

  • Z. Usarek
  • B. Augustyniak
  • M. Augustyniak
  • M. Chmielewski

  - IEEE TRANSACTIONS ON MAGNETICS - Rok 2014

  The effect of various combinations of conditions, i.e., presence of the Earth’s magnetic field during and after deformation on the distribution of stray magnetic field of S355 steel sample, which is locally deformed, was investigated. Some of the stages of the experiment were carried out in zero magnetic field. Compensation of the Earth’s magnetic field was obtained by the application of a pair of Helmholtz coils. These coils are...

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• Disturbances of magnetic field in surrounding of mobile, metalic plate

  Publikacja

  • M. Wołoszyn

  - Rok 2008

  The uniform magnetic field of the Earth in the surrounding of a mobile, metalic object undergoes deformation by eddy currents. The influence of the moving conducting object on total magnetic field of the Earth depends on the object's shape, position and speed of the changes relative to the magnetic field's vector of the Earth as well as the electric conductivity and the relative magnetic permeability of the material. The disturbances...

• The influence of compensate coils on own ship magnetic field

  Publikacja

  • K. Jakubiuk
  • P. Zimny
  • J. Wołoszyn
  • A. Młyński

  - Rok 2006

  A ferromagnetic object placed in the earth magnetic field causes a local disturbance in this field distribution. The field distribution disturbance is a function of many arguments like the dimensoins and shape of the object, its ferromagnetic properties ande its positon in relation to the earth magnetic field. in order to minimize the influence of this disturbance one places compensate coils on the ship. Some chosen results of...