Exposure. A Newsletter for Ocean Technologists. Volume 5. Number 5.

Abstract

The Hawaii institute of geophysics (HIG) has developed two major exploration ocean bottom seismometer (OBS) systems. One operates as a free vertical pop-up ocean bottom seismometer (POBS) and the other is a larger, tethered, ocean bottom seismometer (TOBS). In Both instruments it is necessary to maintain proper orientation of the geophones while the instrument is operating. This proper orientation is maintained by gimballing the geophones. The Newsletter also includes an article which describes an electronic gyrocompass repeater that was designed (by the Technical Planning and Developement Group, OSU) to provide a digital ship's heading output for automatic data management, with the option of adding repeater stations about the ship, at a much lower cost per station than conventional electromechanical repeaters.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1977
Accession Number
ADA047471

Entities

People

  • Roderick S. Mesecar

Organizations

  • Oregon State University

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Connectors
  • Data Management
  • Earth Sciences
  • Engineers
  • Geophones
  • Geophysics
  • Instrumentation
  • Measuring Instruments
  • New York
  • Oceanography
  • Orientation (Direction)
  • Resistance
  • Schools
  • Seabed
  • Seismometers
  • Slip Rings
  • Universities

Fields of Study

  • Environmental science

Readers

  • Inertial Navigation Systems.
  • Oceanography.
  • Technical Research and Report Writing.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems