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Component Parts, IRE Transactions on

Issue 4 • Date December 1962

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Displaying Results 1 - 8 of 8
  • Discussion of Errors of a Recommended Standard Resistor-Noise Test System

    Publication Year: 1962 , Page(s): 180 - 192
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    This paper supplements an earlier report which describes a recommended standard resistor-noise test system. It treats the nature and the magnitude of the errors associated with the use of the test system. The sources and types of errors are discussed for different operating procedures. Means are provided in summary form for estimating accuracy of current-noise measurements under a broad range of operating conditions. View full abstract»

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  • Piezoelectric Materials, A Review of Progress

    Publication Year: 1962 , Page(s): 193 - 211
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (3072 KB)  

    This paper is a review of the properties of the more important piezoelectric materials. Section I discusses the basic principles of the phenomena of piezoelectricity and elasticity from the standpoint of crystal physics. Section II is a brief account of the electrical measurements of piezoelectric vibrators which are required to determine the basic parameters defining the piezoelectric, elastic and dielectric properties of the material. Sections III and IV, respectively, give the properties of a range of piezoelectric crystals and ceramics including, in the most important cases, some of the derived properties which affect the use of the materials in practical devices. It is concluded that it is unlikely that new piezoelectric crystals will be found to replace those in use at present for frequency control and selection but that there is greater scope for new piezoelectric ceramics for use as electromechanical transducers or as frequency selective elements where the highest stability is not required. View full abstract»

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  • Realization of a Filter with Helical Components

    Publication Year: 1962 , Page(s): 213 - 214
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  • Prediction of the Time/Current Characteristics of a Long Cartridge Fuse with a Single-Wire Element

    Publication Year: 1962 , Page(s): 175 - 179
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    Numerous forms of solution for the electrothermal equations of fuses, together with various methods for establishing the parameters of these equations, have been attempted. Following earlier work on the analytical determination of the characteristics of semienclosed oil-immersed fuses and short fuses enclosed in silica or quartz filler, a new method has been established for the solution of long cartridge fuses. This new method is simple and based on a tabular technique derived for the work of Jaeger and Newstead on the transient heating of buried cables. The paper gives a brief treatment of the heat equations for a fuse and indicates the point of departure from the method previously adopted by Guile. The method of solution is indicated and tabular solutions are given for three particular cases of fuse elements of different cross sections. The predicted and experimentally determined time/current characteristics are shown to be in close agree- ment. View full abstract»

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  • Analytical Determination of the Characteristics of Enclosed and Oil-Immersed Fuses

    Publication Year: 1962 , Page(s): 159 - 174
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    In a previous paper the authors dealt with the case of semienclosed fuses, manufactured from uniform thin strip or with single or double discontinuities in their cross sections. An analytical solution for the time/current characteristic of such fuses was shown to exist, which was in very close correlation with experimental derivations of the same characteristics. This work has now been extended in two ways. First, the analytical derivation of fuse characteristic has been extended to cases of fuses with n discontinuities in their cross sections, where n > 2; this work was carried out with the aim of investigating the full range of alternative characteristics available from such fuses. Secondly, and the most important part of the work, has been the extension of the solution obtained for a semienclosed fuse to fuses of similar metallic construction but immersed in oil or enclosed in a silica-type filler. Having established a method and form of solution, a substantial amount of computation is necessary in any one case; in order to facilitate computation, a simple form of transient analog computer has been used, and is described in the paper. In the case of fuses immersed in oil or enclosed in silica-type filler, the main problems have been to establish the parameters of heat transfer prior to finding a form of solution of the relevant equations. The Appendixes contain representative Tables of results in the form in which they were obtained from the analog computer, and an analysis showing the feasibility of establishing a single series of Tables of analog-computer results for fuses with multiple discontinuities in cross-section. View full abstract»

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  • Film Resistors

    Publication Year: 1962 , Page(s): 214
    Cited by:  Papers (1)
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  • An Analytical Method for Predicting the Performance of Semienclosed Fuses

    Publication Year: 1962 , Page(s): 147 - 158
    Cited by:  Papers (2)
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    An analysis has been made and a design procedure established for fuses other than those using round wire and with, or without, a restricted cross section for part of the fuse length. Fuses of restricted section are, however, the major interest since they may be used to give different current/time characteristics by varying their dimensions. These different characteristics may be predicted accurately by the method indicated in the paper. In all the cases of semienclosed tin-strip fuses investigated in this way very close agreement between predicted and experimental results has been obtained. View full abstract»

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  • A Simple, Exact Equivalent Circuit for the Three-Winding Transformer

    Publication Year: 1962 , Page(s): 212 - 213
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (264 KB)  

    An equivalent circuit is described for the three-winding transformer which is similar in form to the classical equivalent T of the two-winding transformer. As in the equivalent T, the performance of the circuit shown can be visualized and the elements of the circuit can usually be related to specific transformer constants. It is shown that the circuit is also exact. 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