By Topic

IEEE Translation Journal on Magnetics in Japan

Issue 9 • Sept. 1990

Filter Results

Displaying Results 1 - 22 of 22
  • [Front cover]

    Publication Year: 1990, Page(s): c1
    Request permission for commercial reuse | PDF file iconPDF (1033 KB)
    Freely Available from IEEE
  • List of contributors

    Publication Year: 1990, Page(s): nil1
    Request permission for commercial reuse | PDF file iconPDF (222 KB)
    Freely Available from IEEE
  • [Breaker page]

    Publication Year: 1990, Page(s): nil1
    Request permission for commercial reuse | PDF file iconPDF (222 KB)
    Freely Available from IEEE
  • Table of contents

    Publication Year: 1990, Page(s): 721
    Request permission for commercial reuse | PDF file iconPDF (115 KB)
    Freely Available from IEEE
  • Magnetic Properties of Co/Pr Artificial Superlattice Thin Films Evaporated in O2 Atmosphere

    Publication Year: 1990, Page(s):722 - 728
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (876 KB)

    Co/Pr artificial superlattice films were prepared by electron beam evaporation in O2 gas. The authors performed systematic investigations of the film magnetic properties, in particular (i) the dependence of the saturation magnetization Ms on temperature; (ii) the dependence of the perpendicular magnetic anisotropy constant K¿ on temperature; and (iii) the dependen... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Magnetic Properties in Co/Ag and Fe/Ag Compositionally Modulated Multilayer Films

    Publication Year: 1990, Page(s):729 - 735
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (771 KB)

    The magneto-optical and magnetic properties of Co/Ag and Fe/Ag compositionally modulated multilayer films (CMF's) were investigated. Co/Ag CMF's have better crystallinity and periodicity than Fe/Ag CMF's. An enhancement of ¿K was also observed at the plasma edge of Ag metal in Co/Ag and Fe/Ag CMF's. The peak values of ¿K in Co/Ag CMF's are larger than those in Fe/Ag CMF's. ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Fabrication of a Composite Inductance Using Co-Metal Amorphous Multilayer Films

    Publication Year: 1990, Page(s):736 - 741
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (677 KB)

    Multilayer films consisting of Co84Zr5.5Nb10.5 and Co79Zr10Mo9Ni2 amorphous layers with SiO2 intermediate layers were prepared. An inductor for use in high frequency applications was fabricated from the film samples and an Ni-Zn ferrite yoke. In order to improve the high frequency characteristics, films fabrica... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Numerical Analysis of Accuracy of Rotational Magnetic Loss Measurement Apparatus

    Publication Year: 1990, Page(s):742 - 748
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (844 KB)

    The magnetic field and loss in an apparatus for the determination of magnetic properties of electrical steel under rotational flux conditions using field sensing coils (H coils) is numerically analyzed by finite element calculations in order to improve accuracy. The method considered here is based on determination of field quantities and makes use of square-shaped samples and an airgap between the... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Three Dimensional Magnetic Field Analysis of Permanent Magnet by Boundary Element Method

    Publication Year: 1990, Page(s):749 - 754
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    Three dimensional analysis is necessary for complicated structural problems, but it requires substantial computer capacity. In this paper, the magnetic field of a permanent magnet was analyzed by the boundary element method. The calculated results were compared with measured results and were found to agree. This method reduces the computing capacity. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characteristics and Application of C-Shaped Magnetic Sheets

    Publication Year: 1990, Page(s):755 - 761
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (809 KB)

    The structure and characteristics of a new magnetic shielding device are described. This shielding device utilizes a certain magnetic circuit in which C-shaped magnetic sheets are combined in a cage-like shape. This is effective in both screening out the unwanted external field and in reducing the leakage flux from magnetic field generators. Because this device has space between magnetic sheets, i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Non-contact Stress Measurement of Rail Steel Using a Magnetic Anisotropy Sensor

    Publication Year: 1990, Page(s):762 - 767
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1647 KB)

    The Magnetic Anisotropy Sensors (MAS) is based on the fact that when stress is applied, the magnetic anisotropy of steel materials changes. MAS employs a small, light probe and is capable of non-contact stress measurement. This paper describes experimental results for non-contact stress measurements of rail steel. A specimen was cut from an actual 60 kg steel rail, and tensile and compressive stre... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Distance Sensors Utilizing Large Barkhausen Effect of Amorphous Wires

    Publication Year: 1990, Page(s):768 - 774
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (794 KB)

    New distance sensors are described which utilize the large Barkhausen effect of amorphous magnetostrictive wires. Only one domain wall propagates in the direction of the wire axis under a driving magnetic field H when the condition H* ≫ H ≫ H0 is satisfied throughout the length of the wire, where H* is the critical field for nucleation of reverse domains, and H0... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characteristics of Soft Heating Method Using Temperature Sensitive Amorphous Flakes

    Publication Year: 1990, Page(s):775 - 781
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1258 KB)

    The soft heating method is a means of induction heating utilizing temperature-sensitive magnetic materials implanted within human tissue. In this method, the Curie temperature acts as a reference temperature. In this paper we propose a soft heating element made of temperature-sensitive amorphous flakes in order to heat deepseated tumors effectively. We also discuss the heating characteristics of a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characteristics of a New Implantable Transformer with Planar Shape

    Publication Year: 1990, Page(s):782 - 788
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2388 KB)

    This paper describes the output characteristics of a new transformer for an implantable artificial heart. The implantable transformer consists of Co-base amorphous magnetic fiber and conductive fibers. Features include a thin, planar shape and high flexibility. A trial-fabricated transformer can supply an electric power of 10 W. The magnetic field distribution in the vicinity of the transformer wa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Relationship between Deviations of Dipole Orientation and Position in MEG Topography

    Publication Year: 1990, Page(s):789 - 795
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (845 KB)

    This study focuses on the influence of inhomogeneities in the human head on surface magnetic fields generated by radial dipoles inside the head. Using a simple inhomogeneous spherical model, components of magnetic fields perpendicular to the surface of the sphere are calculated, and the spatial distributions of MEGs are simulated. The influences of both rotation or inclination of the dipole orient... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Mock Test of Linear Pulse Motor-Driven Artificial Heart

    Publication Year: 1990, Page(s):796 - 802
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1385 KB)

    This paper deals with the basic characteristics of a linear pulse motor-driven artificial heart, as obtained in mock tests. The artificial heart consists mainly of a linear pulse motor and a blood pump, which are mechanically coupled. The linear pulse motor has a flat structure, and is constructed from laminated sheets of permendure and rare-earth magnets. Two kinds of blood pumps, the diaphragm a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Development of a Permanent Magnet Assembly for MRI

    Publication Year: 1990, Page(s):803 - 809
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (814 KB)

    A permanent magnet assembly for MRI (magnetic resonance imaging) has been developed using a high-energy product sintered Nd-Fe-B magnet. There are three types of magnet assembly for use in MRI: superconductive electromagnets, conductive electromagnets, and permanent magnets. The last does not require liquid helium, electricity or cooling water, and can be installed in small spaces. Despite these a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Flux Pinning Effect and Magnetic Torque in Y1Ba2Cu3Oy Single Crystal

    Publication Year: 1990, Page(s):810 - 817
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (985 KB)

    The magnetic flux pinning in superconducting Y1Ba2Cu3Oy single crystal and polycrystal samples has been investigated under magnetic fields of up to 8 kOe using torque magnetometry. The magnetic torque curve shows an anisotropic rotational hysteresis loss. The results are interpreted in terms of anisotropic flux pinning and creep effects. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • [Advertisement]

    Publication Year: 1990, Page(s): 818
    Request permission for commercial reuse | PDF file iconPDF (84 KB)
    Freely Available from IEEE
  • [Advertisement]

    Publication Year: 1990, Page(s): 819
    Request permission for commercial reuse | PDF file iconPDF (84 KB)
    Freely Available from IEEE
  • [Advertisement]

    Publication Year: 1990, Page(s): 820
    Request permission for commercial reuse | PDF file iconPDF (84 KB)
    Freely Available from IEEE
  • [Advertisement]

    Publication Year: 1990, Page(s): nil2
    Request permission for commercial reuse | PDF file iconPDF (593 KB)
    Freely Available from IEEE

Aims & Scope

IEEE Translation Journal on Magnetics in Japan is a publication of the IEEE Magnetics Society published between 1985 and 1994.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
James E. Opfer
Hewlett-Packard