Development of a Seafloor Earthquake Measurement System

Conference · Sun Jan 01 04:00:00 EST 1978

OSTI ID:6664867

Ryerson, D E; Reece, E W

A Seafloor Earthquake Measurement System is being developed at Sandia to measure marine sediment response to seismic activity. The system will use an acoustic telemetry system to transmit commands to and collect data from the seafloor package. The seafloor package contains a microprocessor which controls the data collection, data processing, and acoustic telemetry. A one million bit magnetic bubble memory is used for storage of seismic data obtained from a three-axis accelerometer package. The microprocessor continuously compares the incoming data in mass memory and saves the ''best'' data for later readout by the acoustic telemetry system. The seafloor package consists of a ballast emplaced pressure vessel and probe containing the accelerometer. After the probe is inserted into the sediment, the ballast weight is removed and a section of the probe is retracted to mechanically isolate the accelerometers.

• Research Organization: Sandia Labs., Albuquerque, NM (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 6664867
• Report Number(s): SAND-78-0095C; CONF-780909-1
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
423000* -- Engineering-- Marine Engineering-- (1980-)
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ACCELEROMETERS
COMMUNICATIONS
DATA ACQUISITION SYSTEMS
DATA TRANSMISSION
EARTHQUAKES
MEASURING INSTRUMENTS
MICROPROCESSORS
OPERATION
SEA BED
SEDIMENTS
SEISMIC DETECTORS
SEISMIC EVENTS
SEISMOGRAPHS
SOUND WAVES
TELEMETRY