• DocumentCode
    1051568
  • Title

    A triaxial coil receiver system for the study of subsurface electromagnetic propagation

  • Author

    Thayer, David L. ; Scheer, Leonard ; Tossman, Barry E.

  • Author_Institution
    Applied Physics Lab., The Johns Hopkins Univ., Laurel, MD, USA
  • Volume
    7
  • Issue
    2
  • fYear
    1982
  • fDate
    4/1/1982 12:00:00 AM
  • Firstpage
    75
  • Lastpage
    82
  • Abstract
    A triaxial set of underwater receiving coils was developed and tested. The receiving system was used jointly with an underwater, calibrated, horizontal, electric dipole source in studies of extremely low-frequency electromagnetic propagation. This paper discusses the electromechanical design of the receiver and tethering system and addresses system sensitivity and noise levels. The receiving system was used successfully in a series of measurements, in spite of serious motion noise contamination. A stationary system sensitivity of 5 \\times 10^{-4} \\gamma /\\sqrt {Hz} was achieved.
  • Keywords
    ELF antennas; ELF radio propagation; Sea floor; Underwater antennas; Coils; Contamination; Electromagnetic measurements; Electromagnetic propagation; Low-frequency noise; Motion measurement; Noise level; Noise measurement; Pollution measurement; Testing;
  • fLanguage
    English
  • Journal_Title
    Oceanic Engineering, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0364-9059
  • Type

    jour

  • DOI
    10.1109/JOE.1982.1145521
  • Filename
    1145521