On Calculating Transient Electromagnetic Fields of a Small Current- Carrying Loop Over a Homogeneous Earth

Abstract

The basic theory of airborne EM surveying, in the time domain, is considered. Rather than resorting to tedious double numerical integration, a more direct approach is adopted. This method, valid in the quasi-static regime, is illustrated for a homogeneous flat earth. The results exhibit a number of clear-cut features that are relevant to remote sensing. For example, a vertical co-axial loop system has a desirable transient response from the standpoint of yielding conductivity data without requiring accurate information on the height of the device above the ground.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1971
Accession Number
AD0730339

Entities

People

  • James R. Wait
  • Randolph H. Ott

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  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Classification
  • Commerce
  • Communication Systems
  • Conductivity
  • Contractors
  • Contracts
  • Coordinate Systems
  • Dipoles
  • Electromagnetic Fields
  • Magnetic Dipoles
  • Magnetic Fields
  • Physics Laboratories
  • Remote Sensing
  • Security
  • Time Domain
  • United States

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  • Electrical Engineering
  • Fluid Dynamics.
  • Systems Analysis and Design