Title :
Electromagnetic induction and surface impedance in a half-space from an overhead moving current system
Author :
Pao, Hsueh-Yuan ; Wait, James R.
Author_Institution :
Lawrence Livermore Nat. Lab., California Univ., CA, USA
fDate :
9/1/2000 12:00:00 AM
Abstract :
How does an overhead current system having a velocity v influence the electromagnetic (EM) fields and the surface impedance as measured on the ground? We attempt to answer this question in this paper. A formulation is given for the fields produced by a current system having a uniform translational velocity. The numerical results that reflect the influence of velocity on the surface impedance at the air/earth boundary are presented. The relativity effect is not considered
Keywords :
electric current; electric impedance; electromagnetic fields; electromagnetic induction; EM fields; EM induction; air/earth boundary; electromagnetic fields; electromagnetic induction; ground; half-space; motional velocity; nondestructive testing; overhead moving current system; surface admittance; surface impedance; uniform translational velocity; Earth; Electromagnetic fields; Electromagnetic induction; Electromagnetic measurements; Geologic measurements; Geophysical measurements; Geophysics; Impedance measurement; Magnetic field measurement; Surface impedance;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
