Advanced Marine Technology: Benthic Array
Abstract
An ocean bottom seismic recording capsule has been designed, constructed, and tested. It contains a Block-Moore quartz torsion fiber accelerometer, a two-axis tilt-meter, a current speed meter, a thermometer, and digital recording and control electronics. The sensors and recording electronics are contained in three 22 inch I.D. pressure spheres made from Alcoa aluminum hemispheres. The capsule rests on the ocean floor without lines to the surface. Upon acoustic command, an explosive cable cutter separates the positively buoyant instrument capsule from a support tripod and battery frame. The capsule then floats to the surface for recovery. The acoustic system has both command and diagnostic capabilities. Digital diagnostic data is transmitted to the surface at 100 bps. Microseisms and earthquakes have been recorded.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1974
- Accession Number
- AD0786238
Entities
People
- Walter Munk
- William A. Prothero Jr.
Organizations
- Scripps Institution of Oceanography