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Radio and Electronic Engineer

Issue 1 • Date January 1972

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Displaying Results 1 - 8 of 8
  • The presidential address

    Publication Year: 1972, Page(s):3 - 6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (571 KB)

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  • Predicting servomechanism dynamic errors from frequency response measurements

    Publication Year: 1972
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1480 KB)

    A theory is presented for analytically relating frequency domain criteria to time domain performance criteria. Third-order models are shown to adequately predict dynamic errors in a wide variety of high order physical systems with bandwidths differing by more than 100 to 1. Model coefficients lie in a relatively small region of the coefficient plane, suggesting that check-out spot frequencies and ... View full abstract»

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  • A novel digital method of generating a circle test pattern for television

    Publication Year: 1972, Page(s):21 - 27
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (607 KB)

    Numerical computation of the coordinates of the circle points needed is based on simple incremental algorithms. The organization of the special-purpose computer is described. A major advantage over the analogue methods commonly used is the accuracy and the stability of the pattern. View full abstract»

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  • Generalized karnaugh maps

    Publication Year: 1972, Page(s):28 - 30
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (359 KB)

    The process of mapping Boolean functions is generalized from the Karnaugh map, and it is shown that there are eight useful maps corresponding to any function, from which eight two-layer networks may be derived for implementation of the function. Applications to e.c.l. and m.o.s. logic are mentioned. View full abstract»

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  • Letters: Early submarine cable construction

    Publication Year: 1972
    IEEE is not the copyright holder of this material | PDF file iconPDF (162 KB)
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  • A measurement transducer and program controller for automatic mechanical handling

    Publication Year: 1972, Page(s):31 - 36
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (717 KB)

    Manned mechanical handling is gradually being augmented by automatic systems, and it is appropriate to review manufacturing processes in this connexion. The principles and use of linear and rotary electromagnetically-coupled measurement transducers giving the required information in the form of a change of phase of an electrical signal are discussed. The extent to which transducers can be used as ... View full abstract»

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  • Double-tuned modulator calculations using an improved diode model

    Publication Year: 1972, Page(s):37 - 44
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (871 KB)

    Linear time-varying analysis for single-balanced diode mixers and modulators is developed to incorporate a non-linear conductance model of the non-linear elements employing the exponential i/v characteristic and series resistance of a typical Schottky-barrier diode. It is shown that over a significant range of local-oscillator drive conditions calculations based on the much simpler bilinear diode ... View full abstract»

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  • A modular approach to sequential control

    Publication Year: 1972, Page(s):45 - 51
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1692 KB)

    The paper gives a qualitative treatment of a novel approach to the production of sequential control systems for mechanical handling devices. A proposition that complex sequences can be broken down into combinations of four standard sequence packages is justified and methods are evolved for interconnecting these standard-sequence packages to form complete systems. Additional benefit in the form of ... View full abstract»

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