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IEE Proceedings A - Physical Science, Measurement and Instrumentation, Management and Education - Reviews

Issue 4 • Date April 1987

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Displaying Results 1 - 16 of 16
  • Eddy currents in a rectangular toroid

    Publication Year: 1987, Page(s):309 - 316
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (826 KB)

    Eddy currents flowing in a metallic toroid of rectangular section modify the mutual resistance and mutual inductance between a pair of windings around the metal. These effects can be used to determine the metal's conductivity. This paper presents a two-dimensional analysis of the process, using a Green's function method to determine the magnetic field, from which the resistance and inductance are ... View full abstract»

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  • Erratum: Measurement of eddy-current conductivity

    Publication Year: 1987
    IEEE is not the copyright holder of this material | PDF file iconPDF (68 KB)
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  • Erratum: Factors affecting the design and operation of redox batteries

    Publication Year: 1987
    IEEE is not the copyright holder of this material | PDF file iconPDF (68 KB)
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  • Assessment and improvement of electric-field measurements using a bias probe with particular reference to twin-point-plane geometry

    Publication Year: 1987, Page(s):317 - 327
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1192 KB)

    A commonly used method of measuring current density and electric field at the surface of an electrode is by the use of a bias probe which is inserted into the contours of the electrode. Values of the electric field can be found by applying a bias voltage to the instrument and measuring the ratio of received currents, with and without this bias voltage in operation. The field strengths are then rea... View full abstract»

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  • Book review: Accounting for Profit with the IBM PC

    Publication Year: 1987
    IEEE is not the copyright holder of this material | PDF file iconPDF (115 KB)
    Freely Available from IEEE
  • Eye word processor (EWP) and peripheral controller for the ALS patient

    Publication Year: 1987, Page(s):328 - 330
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (435 KB)

    The authors have designed an eye word processor (EWP) controlled by eye movements for victims of amyotrophic lateral sclerosis (ALS). Instead of unnatural side-to-side eye movement or blinking, the system employs the eye's natural focusing movements. It allows a patient to input eight letters per minute, call a nurse, or control certain appliances. It takes only five minutes to set up, and it has ... View full abstract»

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  • Instrument for real-time measurements of airgap flux distribution of on-load synchronous generators

    Publication Year: 1987, Page(s):331 - 334
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (441 KB)

    The behaviour of airgap flux of synchronous generators was studied and a measurement method for airgap flux density distribution was established. Based on these results, a microprocessor-based instrument for the measurement of airgap flux density distribution has been developed. The authors describe this instrument, by the use of which it is possible to measure exact airgap flux distribution of on... View full abstract»

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  • Fast measurement of active and reactive power in three-phase systems

    Publication Year: 1987, Page(s):335 - 338
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (447 KB)

    The paper presents a new method to measure the active and reactive power in three┬┐┬┐phase systems. The method is based on the space vector formulation, which uses the instantaneous values of voltages and currents in a three-phase system. The work with instantaneous values allows the authors to obtain the instantaneous active and reactive power, because the measuring circuit requires no filters or i... View full abstract»

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  • Contactless measurement of mechanical vibrations based on the Doppler effect

    Publication Year: 1987, Page(s):339 - 342
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (459 KB)

    The paper presents a contactless measurement of mechanical structure vibrations based on the Doppler effect. The range of the measured velocities and amplitudes of the mechanical vibrations and the errors of the measurement method are analysed. The range of applicability of the method as well as measurement results of the vibrations of a loudspeaker and a loudspeaker cabinet are also presented. View full abstract»

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  • Fachwörterbuch Energie- und Automatisierungs-Technik. A Dictionary of Power Engineering and Automation. Part 1

    Publication Year: 1987
    IEEE is not the copyright holder of this material | PDF file iconPDF (136 KB)
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  • Dictionary of Electrical Engineering and Electronics

    Publication Year: 1987
    IEEE is not the copyright holder of this material | PDF file iconPDF (136 KB)
    Freely Available from IEEE
  • Arbitration in mechanical and electrical engineering

    Publication Year: 1987, Page(s):343 - 349
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1165 KB)

    An introduction to arbitration in engineering, for those unfamiliar with this means of determining all kinds of dispute: it is available provided that both parties are agreeable, and the awards are legally binding. The main purpose is to find a swift and just settlement, preferably in such a way that other social and commercial relationships are not soured. It is usual for the arbitrator to have s... View full abstract»

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  • Book review: The Technical History of the Beginnings of Radar

    Publication Year: 1987
    IEEE is not the copyright holder of this material | PDF file iconPDF (270 KB)
    Freely Available from IEEE
  • The Cambridge Scientific Instrument Company from 1881 to 1968

    Publication Year: 1987, Page(s):351 - 358
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1784 KB)

    The author, a past employee of the company, traces its early history from the time, in 1878, when Robert Fulcher and Albert George Dew-Smith began making instruments commercially in Professor Stuart's departmental workshop at Cambridge University. The company's name originated in 1881 when Horace Darwin entered into partnership with Dew-Smith, Darwin, who subsequently became sole owner, was regard... View full abstract»

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  • 1985 Parsons Memorial Lecture 1884: the rebirth of steam power

    Publication Year: 1987, Page(s):359 - 368
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1669 KB)

    In the early 1880s the steam engine was considered to be obsolescent and it was predicted that the internal combustion engine would become the more efficient machine of the future. Both engines relied on the conversion of reciprocating to rotary motion, and thus their speed and output were limited by inertial forces. The paper suggests that in 1881 Parsons foresaw that the infant market for distri... View full abstract»

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  • Book review: Mathematical Methods in Electrical Engineering

    Publication Year: 1987
    IEEE is not the copyright holder of this material | PDF file iconPDF (159 KB)
    Freely Available from IEEE