• DocumentCode
    1050133
  • Title

    A hydrocast bottom-finding switch with audible alarm

  • Author

    Baker, Donald L. ; Fenstermacher, D. Scott

  • Author_Institution
    Virginia Institute of Marine Science, Gloucester Point, VA, USA
  • Volume
    3
  • Issue
    3
  • fYear
    1978
  • fDate
    7/1/1978 12:00:00 AM
  • Firstpage
    72
  • Lastpage
    74
  • Abstract
    A cheap and mechanically simple bottom-finding device uses a single trip weight and a mercury switch to change the dc resistance of an electromechanical cable when the trip weight hits the sea bottom. The change is detected in a deck unit which sounds a loud alarm on an exterior speaker near the winch operator. The deck unit also displays the cable dc voltage and current.
  • Keywords
    Sea floor; Sea, electrical equipment; Sea, electromechanical cables; Switches; Connectors; Contacts; Costs; Displays; Gears; Oil filled cables; Switches; Voltage; Winches;
  • fLanguage
    English
  • Journal_Title
    Oceanic Engineering, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0364-9059
  • Type

    jour

  • DOI
    10.1109/JOE.1978.1145380
  • Filename
    1145380
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1050133