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Component Parts, IEEE Transactions on

Issue 3 • Date Sep 1963

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Displaying Results 1 - 4 of 4
  • Hysteresis Loop Analysis

    Publication Year: 1963 , Page(s): 115 - 118
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (512 KB)  

    The apparent hysteresis loop of a square loop magnetic material is affected by winding capacitance, shorted turns, air gap, and strain. The effects of these parameters on an oscilloscopic display of the dynamic hysteresis loop are demonstrated. View full abstract»

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  • Development of a Miniature, Sealed, Magnetic Circuit Breaker

    Publication Year: 1963 , Page(s): 123 - 127
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (696 KB)  

    A series of miniaturized circuit breakers for precise control and protection of miniature components has been developed. Hermetically sealed units in one, two, and three poles were specifically designed for severe service environments. Selection of the hermetic seal eliminated many environmental problems such as moisture, corrosion, sand and dust, altitude, fungus, and explosion-proof tests. Two time-delay curves are available for each type of current, dc up to 20 amperes at 50 volts and 60 and 400-cycle ac up to 20 amperes at 240 volts. The designed operating range is from minus 40°C to plus 100°C. View full abstract»

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  • Evaluation of Vapor-Plated Oxide Films for Capacitor Dielectrics

    Publication Year: 1963 , Page(s): 119 - 122
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (592 KB)  

    The development of vapor-plating techniques has made possible the preparation of a variety of oxide dielectric films. The work described in this paper is a preliminary evaluation of the physical and chemical properties of some of these films and their suitability for use as capacitor dielectrics. The physical structure of the films has been investigated by X-ray diffraction techniques. Physical and chemical stability of the films was evaluated by thermal shock tests, resistance to scratch and nature of scratch fractures produced, and a variety of chemical treatments. Optical interferomatic techniques were developed for the accurate measurement of film thickness for determination of dielectric constant, dielectric strength and resistivity. Electrical properties of the films were evaluated by capacitor measurements. Results indicate that vapor plated oxide dielectrics have good potential for capacitor applications. This technique has allowed fabrication of capacitors which show a dissipation factor of less than 1 per cent in the frequency range of 100 cps to 300 kc, a capacitance of more than 100 uuf/mm2, and a time constant of open circuit voltage decay in excess of 1000 seconds. Environmental and accelerated aging tests were carried out on the capacitors and a good correlation with the physical and chemical stability of the films was shown. Other applications for these films are under study. View full abstract»

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  • The Effect of Moisture on Molded Composition Resistors

    Publication Year: 1963 , Page(s): 113 - 115
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (352 KB)  

    Moisture problems have perennially plagued the use of the electrical and electronic products. Carbon composition resistors represent a widely used component which must withstand the effects of moisture. Continual improvements in construction and materials have made this possible. To illustrate and magnify the changes that occur in commercial composition resistors with moisture exposure, molded resistors were prepared without insulating jackets or impregnant. Moisture changes are demonstrated to be largely reversible by drying and to be cumulative on extended or repeated moisture exposure. A good correlation was obtained between changes in length and resistance during moisture exposure. An impregnating wax is shown to reduce greatly the moisture susceptibility of the model resistors. Some comparative results obtained with different types of resin binder are also shown, indicating the significant contribution of this phase. View full abstract»

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Aims & Scope

This Transaction ceased production in 1965. The current publication is titled IEEE Transactions on Components, Packaging, and Manufacturing Technology.

Full Aims & Scope