Advertisement

Applied Physics

, Volume 20, Issue 1, pp 89–96 | Cite as

Dynamic electromagnetic response of a homogeneous conducting cylinder for symmetric excitation

  • James R. Wait
  • David A. Hill
Contributed Papers

Abstract

A stranded wire rope is idealized as a homogeneous conducting and permeable cylinder of circular cross section and of infinite length. The rope is excited by a coaxial solenoid or finite-length multi-turn coil that carries an azimuthally directed alternating current. The rope and the enclosing solenoid may have a uniform velocity relative to each other. Using a nonrelativistic analysis, the nature of this dynamic interaction is examined and numerical results are presented for parameter values that are relevant to both static and dynamic conditions in nondestructive testing of such cylindrical conductors. It is shown that for motional velocitiesv larger than about 50 m/s the dynamic interaction with the rope specimen is appreciably modified from that for the static condition (i. e., forv=0).

PACS

41.10 Hv 84.40 Mk 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    H.L. Libby:Introduction to Electromagnetic Non-Destructive Test Methods (Wiley Interscience, New York 1971)Google Scholar
  2. 2.
    V.V. Klyuev, M. L. Faingoiz: “Non-destructive testing of moving current conducting articles by means of pass-through converters using the constant field method,” Defektoskopiya8, 27–31 (1972)Google Scholar
  3. 3.
    H.N. Kritikos, K.S.H. Lee, C.H. Papas: “Electromagnetic reflectivity of nonuniform jet streams,” Radio Sci.2, 991–995 (1967)ADSGoogle Scholar
  4. 4.
    R.H. Ott, G. Hufford: “Scattering by an arbitrarily shaped conductor in uniform motion relative to the source of an incident spherical wave,” Radio Sci.3, 857–861 (1968)ADSGoogle Scholar
  5. 5.
    J.R. Wait, D.A. Hill: “Electromagnetic interaction between a conducting cylinder and a solenoid in relative motion,” Preliminary Report to US Bureau of Mines on Contract No. HO155008 (9 January 1979)Google Scholar
  6. 6.
    L.D. Landau, E. M. Lifshitz:Electrodynamics of Continuous Media (Pergamon Press, Oxford, 1960, Sect. 4.9, p. 205)MATHGoogle Scholar
  7. 7.
    D. A. Hill, J. R. Wait: “Scattering by a slender void in a homogeneous conducting wire rope,” Appl. Phys.16, 391–398 (1978)CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag 1979

Authors and Affiliations

  • James R. Wait
    • 1
  • David A. Hill
    • 2
  1. 1.Environmental Research LaboratoriesNOAA US Dept. of CommerceBoulderUSA
  2. 2.Institute for Telecommunication Sciences/NTIAUS Dept. of CommerceBoulderUSA

Personalised recommendations