By Topic

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

Issue 3 • Date May 1986

Filter Results

Displaying Results 1 - 6 of 6
  • Perturbation technique for fields and forces due to current filaments moving above a conducting plate of finite thickness

    Publication Year: 1986, Page(s):129 - 136
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (492 KB)

    The paper presents a theoretical investigation, using the perturbation technique, for the eddy currents induced in a conducting plate of finite thickness, due to two moving current filaments carrying direct current. The resultant magnetic field distribution, including the reaction effect of the eddy currents, is obtained in terms of first- and second-order effects of a parameter, which includes th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Nondestructive metal sheet testing using the phase angle of the electromagnetic fields

    Publication Year: 1986, Page(s):137 - 138
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (141 KB)

    An exciting cylindrical coil fed with AC current is placed in front of a metallic sheet under test. Variation of the coil impedance due to the presence of the sheet depends on the purity and thickness of the sheet. It is shown that the phase angle rather than the amplitude of the change of the coil impedance is a good measure for testing. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Differential forms and electromagnetism in 3-dimensional Euclidean space R3

    Publication Year: 1986, Page(s):139 - 143
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (428 KB)

    The paper develops the exterior algebra of differential forms as applied to electromagnetic theory in 3-dimensional Euclidean space (R3). The synthesis afforded by the algebraic formulation allows the construction of diagrams which immediately relate the electromagnetic equations (Maxwell's and those of electrostatics and magnetostatics). The resulting framework is both pedagogically enlightening ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Prediction of leakage from single braid screened cables

    Publication Year: 1986, Page(s):144 - 151
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (779 KB)

    Theoretical predictions for the surface transfer impedances of braided coaxial cables are compared to measured values. A phenomenon is reported, whereby the measured cable leakage does not vary linearly with frequency. The predictions include manufacturing tolerances of the braid, this leads to the conclusion that at least a maximum leakage is determinable. Furthermore, this prediction technique s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • OFTEL: a new approach to regulation

    Publication Year: 1986, Page(s):152 - 158
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (926 KB)

    The Office of Telecommunications (OFTEL) was established as a non-Ministerial UK Government Department by the 1984 Act, which laid down the duties of the Director General, who is responsible for enforcing and interpreting the licences and rules for the industry that were approved by Parliament. The author occupies this post, and professionally is an accountant, and has approached his subject from ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The electric power industry and exemplary techniques

    Publication Year: 1986, Page(s):159 - 172
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1823 KB)

    Technological innovation analysis needs case histories of strategically important industries, which are those which stimulate global economic growth and set new standards for judging equipment and introduce new ways of analysing, organising and managing industry. Utilitarian philosophy of technology provides definitions of engineering methods, and uses the concepts of technomorphology to classify ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.