CORAL System
Mobile seismic system for marine surveys and monitoring on the shelf and in transition zones.
The system based on 4C Ocean Bottom Nodes which are controlled by the system’s lab containers.
Designed for offshore seismic exploration and regional studies.
CORAL Composition
Ocean Bottom Nodes
Features:
Operation in any orientation at the seabed
Autonomous operation during 50 days
Connection of external hydroacoustic modem, for positioning and data transfer
Advanced self-diagnostic system
Battery recharging time is 20 hours
Physical characteristics:
Dimensions 400 x 260 x 125 (145) mm
Weight in air 20 kg
Technical Specifications:
Recorder | 4 channels Orthogonal oriented Geophones: BH-20MT OMNI / GS-ONE OMNI Hydrophone |
ADC | 24 bit, delta-sigma with sample interval 0.25, 0.5, 1, 2, 4 ms |
Gain | 0, 6, 12, 18, 24, 30, 36 dB |
Max input signal | 2500 mV |
Equivalent input noise (2ms, 0dB) | 0.87 mV (rms) |
Dynamic Range | 124 dB |
CMRR | >90 dB |
Crossfeed | >110 dB |
THD | < -100 dB |
New OCXO tuning system | tweaks 3x faster |
Lab container
Charging batteries of the Ocean Bottom Nodes
Controlling the Ocean Bottom Nodes
Downloading recorded data from the Ocean Bottom Nodes
Up to 288 Ocean Bottom Nodes
Can be powered by different supply source (220V, 380V, 440V)
CORAL System Features
Can be operated onshore
or at depth up to 1000 meters
Repreparation time
is 20 hours max.
Operating temperature
from -10° to +50° C
Contacts
Marine Technical Center Limited Liability Company
+7 812 339-94-84
info@mtcgeo.com
Dvinskaja st., 14A, space 1-n, office 70,
St. Petersburg, Russia, 198035