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Component Parts, IRE Transactions on

Issue 3 • Date Sep 1957

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Displaying Results 1 - 4 of 4
  • Dielectric Films in Aluminum and Tantalum Electrolytic and Solid Tantalum Capacitors

    Publication Year: 1957 , Page(s): 73 - 82
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2176 KB)  

    The characteristics of electrolytic capacitors are determined primarily by the nature of the dielectric oxide film. The nature of this film and the factors which influence its physical and chemical characteristics are discussed. Electron photomicrographs of the electrolytic oxide film on aluminum, as well as X-ray diffraction and direct electrical measurements of the dry oxide film, reveal that it is crystalline gamma-A12Oa. The characteristics of electrolytic Ta205films on tantalum are compared with those on aluminum, and the factors that make tantalum capacitors more reliable are indicated. View full abstract»

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  • Bounds for Thermistor Compensation of Resistance and Conductance

    Publication Year: 1957 , Page(s): 96 - 101
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (648 KB)  

    This paper shows how to compensate the exponential relation between thermistor resistance and temperature: 1) by means of two constant resistances, so that the compensated resistance becomes an S curve winding around an oblique straight line; and 2) by means of three constant resistances, so that the compensated conductance becomes such an S curve. Formulas are given for the constant resistances so that the errors of the S curve approximations to the oblique lines do not exceed preassigned tolerances. The first type of compensation is used to compensate a component whose resistance increases linearly with temperature, so that the resistance of the compensated component remains constant within a preassigned tolerance throughout a preassigned temperature range of operation. The second type of compensation is applicable to temperature measurement. View full abstract»

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  • Transformer Design for Zero Phase Shift

    Publication Year: 1957 , Page(s): 82 - 85
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (552 KB)  

    A design method for obtaining minimum phase shift between output and input of a transformer is described. The method is applicable to precision reference transformers employed in analog computers and servo loops where minimum quadrature voltages are mandatory. A rigorous analysis of the equivalent circuit of the transformer demonstrates that the transformer can be treated as a combination lead and lag network to yield zero phase shift. This is done by making the ratio of primary resistance to primary shunt reactance equal to the quotient of total leakage reactance and load resistance. The procedure consists of l) designing for theoretical zero phase. View full abstract»

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  • Modern Batteries

    Publication Year: 1957 , Page(s): 86 - 96
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2176 KB)  

    This article gives an outline of the electric batteries in use today. Included are discussions of primary, secondary, and reserve batteries with a section on batteries as component parts. Also included are discussions of special types of primary batteries, namely, solid-electrolyte batteries, waxy-electrolyte batteries, ion-exchange batteries, and nuclear cells. View full abstract»

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Aims & Scope

This Transaction ceased production in 1962. The current publication is titled IEEE Transactions on Components, Packaging, and Manufacturing Technology.

Full Aims & Scope