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IEEE Transactions on Magnetics

Issue 1 • Date March 1966

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Displaying Results 1 - 15 of 15
  • [Front cover and table of contents]

    Publication Year: 1966, Page(s): 0
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  • A theory of digital magnetic recording on metallic films

    Publication Year: 1966, Page(s):1 - 5
    Cited by:  Papers (35)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    A theory is presented predicting the performance of thin magnetic tape as a digital storage medium. The NRZ recording properties are discussed with reference to the properties of both the tape and the replay head. Expressions are derived relating the isolated pulse width, the output voltage, and the packing density to the coercivity and thickness of the tape, the head gap length, and the head-to-t... View full abstract»

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  • The measurement of abrasiveness of magnetic tape

    Publication Year: 1966, Page(s):6 - 13
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1184 KB)

    Magnetic tapes differ substantially in abrasiveness and consequent effect on head life. Logically, the consumer has expressed a need for a means to evaluate this property. In response to this demand, a number of articles and suggested test methods have appeared. The natural tendency of these offerings has been toward tests that are attractively economical of tape, time, and equipment. Such tests o... View full abstract»

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  • A carrier frequency gating circuit for static inverters, converters, and cycloconverters

    Publication Year: 1966, Page(s):14 - 17
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    This paper presents a new technique for gating silicon controlled rectifiers or other power switches in static inverters, converters, and cycloconverters. The approach uses a carrier frequency to transmit the proper gating signal from the logic circuits to the power switches with electrical isolation. This technique is particularly useful when the fundamental frequency of the power conversion syst... View full abstract»

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  • Dc-to-Dc converter using inductive-energy storage for voltage transformation and regulation

    Publication Year: 1966, Page(s):18 - 25
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (992 KB)

    A nondissipatively regulated dc-to-dc converter that operates very efficiently at high frequencies is presented. The circuit is characterized by a small number of power handling components, many of which perform multiple duties. Only one power transistor is used, and the characteristics of the main power handling magnetic element of the circuit are such that this element is not only able to provid... View full abstract»

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  • Variable frequency SCR inverter with an auxiliary commutation circuit

    Publication Year: 1966, Page(s):25 - 30
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    With the recent development of static inverters using thyristors (silicon controlled rectifiers), many extensive attempts have been made to use them as adjustable frequency sources with the aim of realizing simple and accurate speed control systems of ac motors. For these applications, we have developed the improved inverter which has an auxiliary commutation circuit and a feedback current transfo... View full abstract»

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  • A method for measurement of "Creep" in thin magnetic films

    Publication Year: 1966, Page(s):31 - 35
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    The "creep" phenomenon in thin magnetic films is measured using a field consisting of a static field parallel to the film's easy axis, and a high-frequency sinusoidal field along the transverse axis. A special field-gradient coil is used to establish a two-domain magnetization configuration in the film plane, and the Kerr magneto-optic effect is employed to measure the position of the disturbed do... View full abstract»

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  • A "Fail-safe" circuit principle in semiconductor and solid-state systems

    Publication Year: 1966, Page(s):35 - 38
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    This paper deals with the problem of securing greater safety from shock hazard due to leakage to ground in installations involving portable tools, swimming-pool wiring, and hydrotherapy equipment, and proposals for "built-in" protective systems. Criticism has been directed at the use of transistors on grounds of reliability, and it has been required that such a system must "fail safe." The constru... View full abstract»

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  • Final precession angles for pulsed ferrite samples

    Publication Year: 1966, Page(s):39 - 43
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    A theoretical study has been made of the transient motion of the magnetization vector in isotropic ferrite spheres during the application of pulsed magnetic fields at an angle to the dc saturating field. Results are presented which permit the determination of the final precession angle for 1) arbitrary pulse-rise rates and pulsing angles when the pulse is linear, and 2) arbitrary pulsing angles wh... View full abstract»

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  • Microwave properties of planar hexagonal ferrites

    Publication Year: 1966, Page(s):43 - 47
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    A large number of samples of hexagonal ferrite, with planar anisotropy incorporating various metal ions, were synthesized and tested for FMR (ferromagnetic resonance). Measurements were made at room temperature in transmission cavities at frequencies between 10 and 35 Gc/s on magnetically oriented polycrystalline compounds. Of the possible crystal forms for hexagonal ferrite, those designated as <... View full abstract»

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  • An investigation of the quasi-static magnetization process in cross-magnetized multipath ferrite structures

    Publication Year: 1966, Page(s):47 - 54
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    Cross-magnetization of a ferromagnetic body is defined to occur whenever two or more independent nonparallel (crossed) magnetizing fields are applied to the body. A number of devices employing cross-magnetized components have been described in the literature. The analytical treatment of the behavior of systems containing these devices has been based generally on idealizations of the terminal prope... View full abstract»

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  • Fields of a finite cylindrical coil with axial current flow

    Publication Year: 1966, Page(s):55 - 57
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    First Page of the Article
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  • Simple procedure for aligning YIG spheres to reduce anisotropy effects

    Publication Year: 1966, Page(s):57 - 58
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    First Page of the Article
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  • Comments on measurement standards for magnetic films

    Publication Year: 1966, Page(s): 58
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (91 KB)

    First Page of the Article
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  • [Back cover]

    Publication Year: 1966, Page(s): 0
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    Freely Available from IEEE

Aims & Scope

IEEE Transactions on Magnetics publishes research in science and technology related to the basic physics and engineering of magnetism, magnetic materials, applied magnetics, magnetic devices, and magnetic data storage.

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Meet Our Editors

Editor-in-Chief
Pavel Kabos
National Institute of Standards and Technology