BEARING TECHNIQUE IN THE NEAR FIELD OF A MAGNETIC TRANSMITTING DIPOLE IN THE VLF REGION.

Abstract

From the theory of the radiating magnetic dipole two methods are being derived which permit the location of such a dipole in a dissipative medium (rock). One method is based on the trend of field lines, using the angular adjustment of a range-finder antenna for the accurate location even over large distances, the measurement being made by means of earphones. The second measurement uses the intensity distribution of the magnetic field strength yielding in some cases a very simple possibility of evaluation by means of diagrams. The measuring devices and the technique of measurement are explained in detail. A location actually made in a mine is also described in detail, serving as an example of the numerous possibilities of application. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 15, 1965
Accession Number
AD0628771

Entities

People

  • G. Tinhofer
  • N. Nessler

Organizations

  • University of Innsbruck

Tags

DTIC Thesaurus Topics

  • Dipoles
  • Earphones
  • Intensity
  • Magnetic Dipoles
  • Magnetic Fields
  • Measurement
  • Measuring Instruments
  • Near Field
  • Range Finders
  • Test And Evaluation
  • Transmitting

Fields of Study

  • Physics

Readers

  • Geodesy
  • Phased Array Antenna Design.