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Radio and Electronic Engineer

Issue 10 • Date October 1971

 This issue contains several parts.Go to:  Part S 

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Displaying Results 1 - 9 of 9
  • The united states' offer

    Publication Year: 1971
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (471 KB)

    First Page of the Article
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  • Champ: the cranfield hybrid automatic maintenance program

    Publication Year: 1971, Page(s):439 - 452
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1805 KB)

    A preventive maintenance program for a hybrid computer complex is described which makes operational and static accuracy checks. Interfaces, logic elements and analogue elements are tested by sets of individual routines. Considerable time saving is achieved by automatic testing depending on the complexity of the test. An improvement in m.t.b.f. has been observed. View full abstract»

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  • A low cost, high performance mass spectral data system

    Publication Year: 1971, Page(s):453 - 456
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (512 KB)

    A modular, low cost, mass spectrometric data system based on a hybrid analogue-digital preprocessing unit and the British Standard Interface is described. The basic hardware is physically small, has a wide range of capability, and deals directly with the voltage output from electrically recording spectrometers. Mass measurements from single scans at 1:10 000 resolution at 10 s/mass decade show an ... View full abstract»

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  • Gaussian filters for pulse shaping

    Publication Year: 1971, Page(s):457 - 461
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (875 KB)

    Networks with approximately Gaussian insertion loss characteristics for the shaping and standardization of pulses used in B.B.C. television equipment have previously been designed by Dishal's method based on a Taylor series approximant. A proposal by Jones for an improved Gaussian approximant employing Laguerre polynomials suggested that more effective networks might be possible, Computer programs... View full abstract»

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  • Oral expression of metric dimensions in engineering

    Publication Year: 1971
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (136 KB)

    The subject of oral expression of metric dimensions in drawing offices and on the shop floor has been fully discussed during recent months by the Joint Committee on Metrication set up by the Royal Society and the Council of Engineering Institutions. In the Committee's opinion this matter warrants careful consideration by all sectors of industry if confusion is to be avoided from the outset. A cons... View full abstract»

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  • A versatile cellular array for binary arithmetic

    Publication Year: 1971, Page(s):463 - 464
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (194 KB)

    A cellular array is proposed which can be controlled to perform the following arithmetic functions; A+BD+C, A¿BD¿C, or A/B. This results in a saving of hardware over previous arrays, and by having more terms in each function, a reduction in the overall calculation time can be achieved. View full abstract»

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  • The signal-handling capacity of the square-wave switched ring modulator

    Publication Year: 1971, Page(s):465 - 470
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (596 KB)

    Expressions are derived for the maximum permissible interfering input signal power which may be applied to a square-wave switched resistively terminated ring modulator before the onset of severe cross-modulation distortion in the output spectrum. The effects of source and load mismatch are considered and good agreement demonstrated between theoretical prediction and the measured performance of a t... View full abstract»

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  • Measurement and selection of low noise avalanche diodes

    Publication Year: 1971, Page(s):471 - 474
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (678 KB)

    This paper describes an investigation into methods of testing diodes to find those with a predictable and stable noise level, and further describes the noise characteristics of some diodes selected by these methods. View full abstract»

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  • The laser triggered spark gap

    Publication Year: 1971, Page(s):475 - 480
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (755 KB)

    Investigates the feasibility of the laser beam as a trigger for high-voltage gaps. The formative times are studied as a function of the working voltage for different values of pressure, gap spacing and laser power. A low jitter was obtained, of the order of ± 1 ns for a delay of up to 20 ns, making the laser suitable for triggering multiple arc gaps. View full abstract»

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